{"title":"Sensors","description":"\u003c!-- META (paste these into Shopify → Search engine listing) --\u003e\n\u003ctitle\u003eSensors Philippines: Distance, Motion, Environmental, Chemical, Flow \u0026amp; More | Circuitrocks\u003c\/title\u003e\n\u003cmeta name=\"description\" content=\"Shop sensors in the Philippines: ultrasonic\/ToF distance, motion (PIR\/IMU), temperature \u0026amp; humidity, air quality, chemical (pH\/EC\/DO), current\/voltage, flow, load cells, and more. Arduino, ESP32, Raspberry Pi compatible. Fast PH shipping from Circuitrocks.\"\u003e\n\n\u003cdiv class=\"product-copy crx-scope\"\u003e\n  \u003cstyle\u003e\n    .crx-scope{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:#1f2937;line-height:1.65}\n    .crx-scope h2{font-size:1.6rem;margin:0 0 .35rem}\n    .crx-scope h3{font-size:1.12rem;margin:.9rem 0 .45rem}\n    .crx-scope p{margin:.5rem 0}\n    .crx-scope .section{margin:1.15rem 0}\n    .crx-scope .grid{display:grid;gap:.9rem}\n    .crx-scope .cols-2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}\n    .crx-scope .cols-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}\n    .crx-scope .card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:1rem}\n    .crx-scope a{color:#15803d;text-decoration:none;border-bottom:1px dashed #9ae6b4}\n    .crx-scope .pill{display:inline-block;background:#e8f5ee;color:#166534;font-weight:700;padding:.22rem .6rem;border-radius:999px}\n\n    \/* Comfortable, larger table text *\/\n    .crx-scope table{width:100%;border-collapse:collapse;font-size:1.06rem;line-height:1.55}\n    .crx-scope th,.crx-scope td{border:1px solid #d9dde3;padding:.75rem .8rem;text-align:left;vertical-align:top}\n    .crx-scope th{background:#f5f7f9;font-weight:800}\n    @media (max-width:640px){\n      .crx-scope table{font-size:1.02rem}\n      .crx-scope th,.crx-scope td{padding:.65rem .7rem}\n    }\n    .crx-scope .muted{color:#6b7280}\n    .crx-scope .note{background:#fff8e6;border:1px solid #ffe1a1;border-radius:10px;padding:.75rem}\n  \u003c\/style\u003e\n\n  \u003ch2\u003eSensors at Circuitrocks — Measure the World with Arduino, ESP32 \u0026amp; Raspberry Pi\u003c\/h2\u003e\n  \u003cp class=\"lead\"\u003e\n    Build reliable projects with our curated \u003cstrong\u003esensors\u003c\/strong\u003e—from \u003cstrong\u003edistance\u003c\/strong\u003e and \u003cstrong\u003emotion\u003c\/strong\u003e to \u003cstrong\u003eenvironmental\u003c\/strong\u003e, \u003cstrong\u003echemical\/water quality\u003c\/strong\u003e, \u003cstrong\u003ecurrent\/voltage\u003c\/strong\u003e, and \u003cstrong\u003eflow\/level\u003c\/strong\u003e. Classroom-friendly, lab-tested, and maker-ready.\n  \u003c\/p\u003e\n  \u003cp class=\"pill\"\u003eDistance • Motion\/IMU • Temp\/Humidity • Air Quality • Chemical • Flow\/Level • Current\/Voltage\u003c\/p\u003e\n\n  \u003cdiv class=\"section grid cols-3\"\u003e\n    \u003cdiv class=\"card\"\u003e\n      \u003ch3\u003eWhy shop sensors here\u003c\/h3\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWide coverage:\u003c\/strong\u003e hobby to lab-grade probes\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEasy integration:\u003c\/strong\u003e I²C\/SPI\/UART\/analog with libraries\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePH support:\u003c\/strong\u003e quick local advice and replacements\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"card\"\u003e\n      \u003ch3\u003ePopular builds\u003c\/h3\u003e\n      \u003cul\u003e\n        \u003cli\u003eLine-following \u0026amp; obstacle-avoid robots\u003c\/li\u003e\n        \u003cli\u003eWeather stations \u0026amp; IAQ dashboards\u003c\/li\u003e\n        \u003cli\u003eHydroponics\/aquarium controllers (pH\/EC\/DO)\u003c\/li\u003e\n        \u003cli\u003eEnergy, water-flow, and tank-level monitoring\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"card\"\u003e\n      \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003ca href=\"\/collections\/displays\"\u003eOLED\/TFT displays\u003c\/a\u003e \u0026amp; \u003ca href=\"\/collections\/memory\"\u003edata logging\u003c\/a\u003e\n\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"\/collections\/power\"\u003eStable power \u0026amp; isolation\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\n\u003ca href=\"\/collections\/enclosures\"\u003eEnclosures\u003c\/a\u003e \u0026amp; \u003ca href=\"\/collections\/cables\"\u003ecables\u003c\/a\u003e\n\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"section card\"\u003e\n    \u003ch3\u003eFeatured sensor categories\u003c\/h3\u003e\n    \u003cdiv class=\"grid cols-3\"\u003e\n      \u003cdiv\u003e\n        \u003ch4\u003eDistance \u0026amp; Motion\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=ultrasonic+sensor\"\u003eUltrasonic HC-SR04 class\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=VL53L0X|VL53L1X|ToF+sensor\"\u003eToF (VL53 series)\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=IMU+MPU6050|MPU-6050|MPU-9250|LSM6DS3\"\u003eIMUs \u0026amp; gyros\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=PIR+motion+sensor\"\u003ePIR motion\u003c\/a\u003e\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch4\u003eEnvironmental \u0026amp; Air Quality\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=DHT22|BME280|SHT31\"\u003eTemp\/Humidity\/Pressure\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=CO2+NDIR|SCD|SEN5x|PM2.5\"\u003eCO₂ (NDIR), VOC\/TVOC \u0026amp; PM2.5\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\n\u003ca href=\"\/collections\/chemical-sensors\"\u003eGas \u0026amp; chemical\u003c\/a\u003e (MQ series, VOC)\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch4\u003eWater, Power \u0026amp; Process\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003e\n\u003ca href=\"\/collections\/chemical-sensors\"\u003epH\/EC\/ORP\/DO\u003c\/a\u003e (incl. Atlas Scientific)\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/collections\/pressure-sensors\"\u003ePressure \u0026amp; level\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=water+flow+sensor|flow+meter\"\u003eFlow meters\u003c\/a\u003e\u003c\/li\u003e\n          \u003cli\u003e\u003ca href=\"\/search?q=current+sensor+ACS|INA219\"\u003eCurrent\/voltage sensors\u003c\/a\u003e\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp class=\"note\"\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e For noisy or long-cable installs, prefer \u003cstrong\u003eI²C\/UART digital\u003c\/strong\u003e sensors or use \u003cstrong\u003esignal isolation\u003c\/strong\u003e modules for analog probes.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"section card\"\u003e\n    \u003ch3\u003eSensor chooser (quick guide)\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eNeed\u003c\/th\u003e\n        \u003cth\u003eGood first choice\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eObject distance\u003c\/td\u003e\n        \u003ctd\u003eUltrasonic HC-SR04 or \u003cstrong\u003eToF VL53L0X\u003c\/strong\u003e\n\u003c\/td\u003e\n        \u003ctd\u003eToF is compact and better at short ranges; ultrasonic is budget-friendly.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTemp\/Humidity\/Pressure\u003c\/td\u003e\n        \u003ctd\u003e\n\u003cstrong\u003eBME280\u003c\/strong\u003e \/ SHT31\u003c\/td\u003e\n        \u003ctd\u003eI²C, stable libraries; great for weather and logging.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAir quality\u003c\/td\u003e\n        \u003ctd\u003e\n\u003cstrong\u003eCO₂ (NDIR)\u003c\/strong\u003e + VOC + PM2.5\u003c\/td\u003e\n        \u003ctd\u003eCombine for a complete IAQ score; ensure airflow and filters.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWater chemistry\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/collections\/atlas-scientific\"\u003eAtlas Scientific pH\/EC\/DO\u003c\/a\u003e\u003c\/td\u003e\n        \u003ctd\u003eUse proper storage\/calibration solutions; consider temp compensation.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eFlow \u0026amp; level\u003c\/td\u003e\n        \u003ctd\u003eHall-effect flow meter + pressure\/ultrasonic level\u003c\/td\u003e\n        \u003ctd\u003eMind pipe size (G1\/2, 3\/4) and minimum flow for accurate readings.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMotion\/orientation\u003c\/td\u003e\n        \u003ctd\u003eIMU \u003cstrong\u003eMPU-6050\/LSM6\u003c\/strong\u003e family\u003c\/td\u003e\n        \u003ctd\u003eGood for balancing bots, logging, gestures; sample at steady rates.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCurrent\/voltage\u003c\/td\u003e\n        \u003ctd\u003e\n\u003cstrong\u003eINA219\/INA226\u003c\/strong\u003e or ACS series\u003c\/td\u003e\n        \u003ctd\u003eHigh-side digital measurement; isolate if monitoring mains.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n    \u003cp class=\"muted\"\u003eValues and picks are common starting points; check each product page for exact specs and wiring.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"section card\"\u003e\n    \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWeather Node:\u003c\/strong\u003e BME280 + \u003ca href=\"\/collections\/esp\"\u003eESP32\u003c\/a\u003e + \u003ca href=\"\/collections\/displays\"\u003eOLED\u003c\/a\u003e + enclosure\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHydro Monitor:\u003c\/strong\u003e pH + EC + \u003ca href=\"\/search?q=RTD+temperature+sensor\"\u003eRTD temp\u003c\/a\u003e + \u003ca href=\"\/collections\/power\"\u003eisolated PSU\u003c\/a\u003e\n\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRobot Kit:\u003c\/strong\u003e ToF + IMU + \u003ca href=\"\/collections\/motor-drivers\"\u003emotor driver\u003c\/a\u003e + \u003ca href=\"\/collections\/power\"\u003e5V supply\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"section card faq-list\"\u003e\n    \u003ch3\u003eFAQ\u003c\/h3\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these sensors compatible with Arduino\/ESP32\/Raspberry Pi?\u003c\/summary\u003e\n      \u003cp\u003eYes. Most expose I²C, SPI, UART, or analog outputs with ready-made libraries and examples.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eDo gas and chemical sensors need calibration?\u003c\/summary\u003e\n      \u003cp\u003eYes—MQ sensors require burn-in; water probes (pH\/EC\/DO) need regular calibration and proper storage solutions.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I avoid noisy readings?\u003c\/summary\u003e\n      \u003cp\u003eUse stable power, short signal runs, shielding\/grounding, and consider digital sensors or isolation for long cables.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eDo you ship nationwide?\u003c\/summary\u003e\n      \u003cp\u003eYes—fast shipping anywhere in the Philippines. Same-day processing on in-stock orders before cutoff.\u003c\/p\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"section\"\u003e\n    \u003cp class=\"muted\"\u003eExplore related: \u003ca href=\"\/collections\/chemical-sensors\"\u003eChemical Sensors\u003c\/a\u003e • \u003ca href=\"\/collections\/pressure-sensors\"\u003ePressure Sensors\u003c\/a\u003e • \u003ca href=\"\/collections\/displays\"\u003eDisplays\u003c\/a\u003e • \u003ca href=\"\/collections\/power\"\u003ePower \u0026amp; Isolation\u003c\/a\u003e • \u003ca href=\"\/collections\/enclosures\"\u003eEnclosures\u003c\/a\u003e • \u003ca href=\"\/collections\/cables\"\u003eCables\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"distance-sensor-10-80cm-gp2y0a21yk0f-sharp","title":"Sharp GP2Y0A21YK0F IR Distance Sensor 10-80cm","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Nearby Objects Without Contact\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eDistance Sensor 10-80cm GP2Y0A21YK0F Sharp\u003c\/strong\u003e is an infrared distance sensor with digital output designed for distance measurement, obstacle detection, level checks, and basic automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eDetection Range:\u003c\/strong\u003e Approx. 2cm – 30cm (adjustable); \u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V – 5V DC; \u003cstrong\u003eOutput Type:\u003c\/strong\u003e Digital (HIGH \/ LOW).\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Adjustable detection range via onboard potentiometer\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDigital output (HIGH \/ LOW signal):\u003c\/strong\u003e Digital output (HIGH \/ LOW signal)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast response time:\u003c\/strong\u003e Fast response time for real-time obstacle detection\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Power LED + Detection LED\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e Digital (HIGH \/ LOW)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e Approx. 2cm – 30cm (adjustable)\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDistance Sensor 10-80cm GP2Y0A21YK0F Sharp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared distance sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adjustable-infrared-sensor-switch-3-80-cm\"\u003eInfrared Sensor Adjustable E18-D80NK\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared proximity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/ir-proximity-obstacle-avoidance-sensor-module\"\u003eIR Proximity Obstacle Avoidance Sensor Module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared proximity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/infrared-tiny-adjustable-3-100cm-sensor-switch\"\u003eInfrared Tiny Adjustable 3 - 100cm Sensor Switch\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for robot obstacle avoidance, tank level checks, parking aids, object counters, and range alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eDistance Sensor 10-80cm GP2Y0A21YK0F Sharp\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eIndicator LEDs\u003c\/th\u003e\n\u003ctd\u003ePower LED + Detection LED\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput Type\u003c\/th\u003e\n\u003ctd\u003eDigital (HIGH \/ LOW)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDetection Range\u003c\/th\u003e\n\u003ctd\u003eApprox. 2cm – 30cm (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V – 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eComparator\u003c\/th\u003e\n\u003ctd\u003eLM393\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eproximity presence sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Distance Sensor 10-80cm GP2Y0A21YK0F Sharp\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Distance Sensor 10-80cm GP2Y0A21YK0F Sharp measure?\u003c\/strong\u003e\n It is designed to measure distance or object presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sharp","offers":[{"title":"Default Title","offer_id":45761314685217,"sku":"2433","price":341.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/distance-sensor-10-80cm-gp2y0a21yk0f-sharp-42.jpg?v=1689316948"},{"product_id":"dust-sensor-arduino","title":"Sharp GP2Y1014AU0F Dust Sensor for Arduino - PM2.5","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eDust Sensor GP2Y1014AUOF for Arduino\u003c\/strong\u003e is a dust sensor with analog output designed for light logging, optical switching, line tracking, and brightness-aware projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 5–7 V; \u003cstrong\u003eOutput:\u003c\/strong\u003e Analog voltage proportional to dust density; \u003cstrong\u003eSize:\u003c\/strong\u003e 46 × 34 mm.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAnalog output — Simple to read:\u003c\/strong\u003e Analog output — Simple to read with Arduino analog pins.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Compact \u0026amp; low power — ~20 mA max, small footprint for portable builds.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e Analog voltage proportional to dust density\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5–7 V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 20 mA max\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 46 × 34 mm\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDust Sensor GP2Y1014AUOF for Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003edust sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sensors-optical-light-imaging-photon-sensors-ambient-light-analog-sensor\"\u003eLight Ambient Analog Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/qtr-3rc-reflectance-sensor-array\"\u003eQTR-3RC Reflectance Sensor Array\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eoptical interrupter sensor\u003c\/td\u003e\n\u003ctd\u003emodel QTR-3RC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flame-sensor-analog-and-digital\"\u003eFlame Sensor for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with UART\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, analog output\u003c\/td\u003e\n\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for automatic brightness control, line followers, light meters, UV monitors, flame detection, and optical encoders.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include an Arduino or ADC-capable board, jumper wires, and a stable power source, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eDust Sensor GP2Y1014AUOF for Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eGP2Y1014AUOF\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003eAnalog voltage proportional to dust density\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSupply Voltage\u003c\/th\u003e\n\u003ctd\u003e5–7 V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCurrent Consumption\u003c\/th\u003e\n\u003ctd\u003e20 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e46 × 34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e20 g\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eIoT bundle\u003c\/th\u003e\n\u003ctd\u003eESP32 + Wi-Fi code template for sending data to a phone\/Cloud\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eEndurance Life\u003c\/th\u003e\n\u003ctd\u003e≈ 5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then read the sensor output with an \u003cstrong\u003eanalog-capable input\u003c\/strong\u003e or external ADC. Stable power and a clean ground help reduce noise.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Dust Sensor GP2Y1014AUOF for Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Dust Sensor GP2Y1014AUOF for Arduino measure?\u003c\/strong\u003e\n It is designed to measure dust or particle levels in air.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sharp","offers":[{"title":"Default Title","offer_id":45761338540321,"sku":"AB124","price":349.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/dust-sensor-arduino-1.png?v=1781002469"},{"product_id":"waterproof-integrated-ultrasonic-ranging-module","title":"JSN-SR04T 2.0 Waterproof Ultrasonic Distance Sensor","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb}\n .product-copy table thead th{background:#f3f4f6;font-weight:600;color:#374151}\n .product-copy table tbody tr:nth-child(even) td{background:#fafafa}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eWaterproof Ultrasonic Distance Sensor for Outdoor and Liquid-Level Projects\u003c\/h2\u003e\n\n \u003cp\u003e\n The \u003cstrong\u003eJSN-SR04T 2.0 Waterproof Ultrasonic Ranging Module\u003c\/strong\u003e is the upgrade makers and engineers choose when the standard\n HC-SR04 isn't enough. Its \u003cstrong\u003esealed, waterproof transducer probe\u003c\/strong\u003e can be mounted outdoors, near water, or even partially\n submerged — making it the right tool for water tank level monitoring, rain detection, outdoor obstacle avoidance, sump pump automation,\n fish pond control, and any project where moisture or weather would destroy a bare sensor.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Like the HC-SR04, it uses \u003cstrong\u003e40 kHz ultrasonic pulses\u003c\/strong\u003e and a simple TRIG\/ECHO interface that works with\n \u003cstrong\u003eArduino, ESP32, Raspberry Pi, and virtually any microcontroller\u003c\/strong\u003e. The key difference is the separated,\n waterproof transducer head connected to the control board via a flexible cable — so only the probe goes into harsh environments\n while your electronics stay safely protected.\n \u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n \u003cstrong\u003eImportant:\u003c\/strong\u003e The \u003cem\u003ewaterproof transducer probe\u003c\/em\u003e is sealed and splash\/submersion resistant.\n The \u003cem\u003emain PCB control board\u003c\/em\u003e is not waterproof and must be kept dry and protected from direct water exposure.\n \u003c\/div\u003e\n\n \u003ch3\u003eWhy you'll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eWaterproof probe:\u003c\/strong\u003e The sensing head is fully sealed — safe near water, rain, and humidity\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUp to 6 meters range:\u003c\/strong\u003e Detects objects from 20 cm to 600 cm with ±1 cm accuracy\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e3.0V to 5.5V operation:\u003c\/strong\u003e Wide voltage range compatible with both 5V Arduino and 3.3V ESP32 \/ Pi boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1 mm resolution:\u003c\/strong\u003e Fine-grained readings for precise level monitoring and distance measurement\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e75° beam angle:\u003c\/strong\u003e Wider detection cone compared to the HC-SR04's 30° — better for tank walls and irregular surfaces\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSame TRIG\/ECHO interface as HC-SR04:\u003c\/strong\u003e Drop-in replacement in most code — no library changes needed\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eLow power consumption:\u003c\/strong\u003e \u0026lt;8 mA working current, ideal for battery-powered outdoor setups\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eJSN-SR04T 2.0 vs HC-SR04 — which should you choose?\u003c\/h3\u003e\n \u003cp\u003eBoth sensors use the same ultrasonic principle and TRIG\/ECHO interface. Here is how they differ:\u003c\/p\u003e\n \u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eFeature\u003c\/th\u003e\n \u003cth\u003eJSN-SR04T 2.0\u003c\/th\u003e\n \u003cth\u003eHC-SR04\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eWaterproof probe\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e✅ Yes — sealed transducer\u003c\/td\u003e\n \u003ctd\u003e❌ No — bare piezo elements\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eOperating voltage\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e3.0V – 5.5V\u003c\/td\u003e\n \u003ctd\u003e5V only\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eMax range\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e600 cm (6 m)\u003c\/td\u003e\n \u003ctd\u003e400 – 500 cm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eMinimum range\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e20 cm\u003c\/td\u003e\n \u003ctd\u003e2 cm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e1 mm\u003c\/td\u003e\n \u003ctd\u003e1 cm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eBeam angle\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e75°\u003c\/td\u003e\n \u003ctd\u003e\u0026lt;30°\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eWorking current\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e\u0026lt;8 mA\u003c\/td\u003e\n \u003ctd\u003e~15 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eBest for\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003eOutdoor use, water tanks, rain, liquid level monitoring\u003c\/td\u003e\n \u003ctd\u003eIndoor robots, obstacle avoidance, classroom projects\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eSame code interface\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e✅ Yes — TRIG \/ ECHO pins\u003c\/td\u003e\n \u003ctd\u003e✅ Yes — TRIG \/ ECHO pins\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003e\n This sensor is ideal for \u003cstrong\u003ewater tank level monitors\u003c\/strong\u003e, underground cistern sensors, aquarium depth gauges, sump pump float replacements,\n rain gauge automation, outdoor parking sensors, garden irrigation triggers, flood alert systems, river or canal level loggers,\n weatherproof robot bumpers, and industrial bin-fill detectors. It is a popular choice for engineering thesis and capstone projects\n where outdoor or liquid-adjacent sensing is required.\n \u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles \u0026amp; compatible boards\u003c\/h3\u003e\n \u003cp\u003e\n Pair this sensor with an \u003ca href=\"\/search?q=arduino+uno\"\u003eArduino Uno\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e,\n or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e from Circuitrocks. Because it operates down to 3.0V,\n it works directly with 3.3V ESP32 boards without a voltage divider on the ECHO line.\n \u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eJSN-SR04T 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003ctd\u003eDC 3.0V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Current\u003c\/th\u003e\n\u003ctd\u003e\u0026lt;8 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eIdle Current\u003c\/th\u003e\n\u003ctd\u003e~5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eProbe Frequency\u003c\/th\u003e\n\u003ctd\u003e40 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMaximum Range\u003c\/th\u003e\n\u003ctd\u003e600 cm (6 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMinimum Range\u003c\/th\u003e\n\u003ctd\u003e20 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003ctd\u003e±1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMeasuring Angle\u003c\/th\u003e\n\u003ctd\u003e75°\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eTRIG (input) + ECHO (output) — digital GPIO, same as HC-SR04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePCB Dimensions\u003c\/th\u003e\n\u003ctd\u003e42 × 29 × 12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePCB Color\u003c\/th\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWaterproof\u003c\/th\u003e\n\u003ctd\u003eTransducer probe only — PCB must be kept dry\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCompatible Platforms\u003c\/th\u003e\n\u003ctd\u003eArduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003e\n Connect \u003cstrong\u003eVCC → 3.3V or 5V\u003c\/strong\u003e, \u003cstrong\u003eGND → GND\u003c\/strong\u003e,\n \u003cstrong\u003eTRIG → any digital output pin\u003c\/strong\u003e, and \u003cstrong\u003eECHO → any digital input pin\u003c\/strong\u003e.\n Send a 10 µs HIGH pulse on TRIG, then time the ECHO pulse. Use the same distance formula:\n \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eDistance (cm) = Echo pulse duration (µs) ÷ 58\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003e\n Because the JSN-SR04T 2.0 accepts 3.0V–5.5V, it is safe to connect ECHO directly to an ESP32 GPIO pin\n without a voltage divider — unlike the standard 5V HC-SR04. Route the cable so only the sealed probe\n is exposed to moisture; keep the PCB in a dry enclosure.\n \u003c\/p\u003e\n\n \u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n \u003cp\u003e1 × JSN-SR04T 2.0 Waterproof Ultrasonic Ranging Module (PCB + waterproof probe with cable)\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Jumper wires and microcontroller boards are sold separately.\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat makes the JSN-SR04T different from the HC-SR04?\u003c\/strong\u003e\n The JSN-SR04T has a waterproof sealed transducer probe that can be exposed to rain, moisture, or splashing water. The HC-SR04 has bare piezo elements that will fail if wet. The JSN-SR04T also has better range (600 cm vs 400–500 cm) and finer resolution (1 mm vs 1 cm).\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan the entire module be submerged in water?\u003c\/strong\u003e\n Only the transducer probe is waterproof and can be exposed to water. The PCB control board must be kept dry and protected inside an enclosure.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs this compatible with my existing HC-SR04 code?\u003c\/strong\u003e\n Yes. It uses the same TRIG\/ECHO interface and the same pulse-timing formula. In most cases you can swap the sensor without changing your code.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it work with ESP32 at 3.3V?\u003c\/strong\u003e\n Yes. The JSN-SR04T 2.0 operates down to 3.0V, so it is natively compatible with 3.3V boards like ESP32 and Raspberry Pi — no voltage divider needed on the ECHO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat is the minimum detectable distance?\u003c\/strong\u003e\n The minimum range is 20 cm. Objects closer than 20 cm may not be detected reliably, which is a design tradeoff of the sealed transducer format.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use this for a water tank level monitor?\u003c\/strong\u003e\n Yes. This is one of the most common use cases. Mount the probe at the top of the tank pointing downward, keep the PCB outside the tank in a dry box, and read distance to calculate water level.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761341325601,"sku":"AM283","price":557.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/waterproof-integrated-ultrasonic-ranging-module-jsn-sr04t-65.jpg?v=1689317004"},{"product_id":"adjustable-infrared-sensor-switch-3-80-cm","title":"IR Sensor Adjustable E18-D80NK - Photoelectric Switch","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Infrared Detection to Your Next Project\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eInfrared Sensor Adjustable E18-D80NK\u003c\/strong\u003e is an infrared proximity sensor with digital output designed for presence sensing, short-range detection, and touchless automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eAdjustable detection range:\u003c\/strong\u003e 3cm - 80cm; \u003cstrong\u003ePower Supply:\u003c\/strong\u003e 5V; \u003cstrong\u003eOutput Operation:\u003c\/strong\u003e Normally Open.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e Normally Open\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e 3cm - 80cm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 100mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensor size:\u003c\/strong\u003e 18mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInfrared Sensor Adjustable E18-D80NK\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared proximity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/distance-sensor-10-80cm-gp2y0a21yk0f-sharp\"\u003eDistance Sensor 10-80cm GP2Y0A21YK0F Sharp\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared distance sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/infrared-tiny-adjustable-3-100cm-sensor-switch\"\u003eInfrared Tiny Adjustable 3 - 100cm Sensor Switch\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/ir-proximity-obstacle-avoidance-sensor-module\"\u003eIR Proximity Obstacle Avoidance Sensor Module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared proximity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for touchless dispensers, object counters, door triggers, small robots, and presence alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eInfrared Sensor Adjustable E18-D80NK\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eE18-D80NK\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput Operation\u003c\/th\u003e\n\u003ctd\u003eNormally Open\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput DC\u003c\/th\u003e\n\u003ctd\u003eThree Wired System (NPN)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAdjustable detection range\u003c\/th\u003e\n\u003ctd\u003e3cm - 80cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower Supply\u003c\/th\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Current\u003c\/th\u003e\n\u003ctd\u003e100mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Infrared Sensor Adjustable E18-D80NK\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Infrared Sensor Adjustable E18-D80NK measure?\u003c\/strong\u003e\n It is designed to measure nearby objects, remote IR signals, or motion.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761345519905,"sku":"AF169","price":209.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/adjustable-infrared-sensor-switch-3-80-cm-white.jpg?v=1778911765"},{"product_id":"optical-light-imaging-photon-sensors-opto-interrupter","title":"Opto-Interrupter TCST2103 - Slotted Optical Switch","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eUse Beam Interruption for Fast Optical Detection\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eOpto Interrupter TCST2103\u003c\/strong\u003e is an optical interrupter sensor designed for slot sensing, encoder feedback, speed counting, and position detection. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eTypical Output Current:\u003c\/strong\u003e TCST2103: 4 mA TCST2202: 2 mA TCST2300: 0.5 mA; \u003cstrong\u003eSize (L x W x H):\u003c\/strong\u003e 24.5 × 6.3 × 10.8 mm; \u003cstrong\u003eGap Width:\u003c\/strong\u003e 3.1 mm.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Integrated infrared LED and phototransistor in one compact unit\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eReliable object detection:\u003c\/strong\u003e Reliable object detection using beam interruption\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBuilt-in daylight blocking filter:\u003c\/strong\u003e Built-in daylight blocking filter for stable performance in bright environments\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e TCST2103: 4 mA TCST2202: 2 mA TCST2300: 0.5 mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing gap:\u003c\/strong\u003e 3.1 mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 24.5 × 6.3 × 10.8 mm\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpto Interrupter TCST2103\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eoptical interrupter sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/reflective-optical-sensor-with-transistor-output-cny70-2\"\u003eReflective Optical Sensor with Transistor Output CNY70\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eoptical interrupter sensor\u003c\/td\u003e\n\u003ctd\u003einfrared sensing, temperature sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adafruit-tsl2591-high-dynamic-range-digital-light-sensor-stemma-qt\"\u003eAdafruit TSL2591 High Dynamic Range Digital Light Sensor - STEMMA QT\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eSTEMMA QT connector, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gesture-and-rgb-sensor\"\u003eGesture and RGB Sensor APDS 9960\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egesture sensor\u003c\/td\u003e\n\u003ctd\u003edigital output, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for wheel encoders, slot sensors, paper-feed monitors, shaft counters, and motor feedback.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eOpto Interrupter TCST2103\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTypical Output Current\u003c\/th\u003e\n\u003ctd\u003eTCST2103: 4 mA TCST2202: 2 mA TCST2300: 0.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eGap Width\u003c\/th\u003e\n\u003ctd\u003e3.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize (L x W x H)\u003c\/th\u003e\n\u003ctd\u003e24.5 × 6.3 × 10.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWavelength\u003c\/th\u003e\n\u003ctd\u003e950 nm IR\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eDaylight blocking\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTCST2103\u003c\/th\u003e\n\u003ctd\u003e4 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTCST2202\u003c\/th\u003e\n\u003ctd\u003e2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTCST2300\u003c\/th\u003e\n\u003ctd\u003e0.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eOpto Interrupter TCST2103\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Opto Interrupter TCST2103\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Opto Interrupter TCST2103 measure?\u003c\/strong\u003e\n It is designed to measure light, reflection, or beam interruption.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761347027233,"sku":"2386","price":49.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/opto-interrupter-tcst2103-68.jpg?v=1689317017"},{"product_id":"reed-switch-module","title":"Reed Switch Module - Magnetic Reed Sensor","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Nearby Objects Without Contact\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eReed Switch Module\u003c\/strong\u003e is a magnetic sensor with digital output designed for obstacle detection, touchless triggers, object counting, and simple automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V to 5V DC; \u003cstrong\u003eOutput format:\u003c\/strong\u003e Digital switching output ( 0 and 1 ); \u003cstrong\u003ePCB Size:\u003c\/strong\u003e 32mm x 14mm.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e Digital switching output ( 0 and 1 )\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V to 5V DC\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 32mm x 14mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e obstacle detection, touchless triggers, object counting, and simple automation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReed Switch Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003emagnetic sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/magnetic-contact-switch-door-sensor\"\u003eMagnetic contact switch door sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/float-switch-plastic-water-level-control\"\u003eFloat Switch Plastic Water Level Control\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eliquid level sensor\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/crash-sensor-right\"\u003eCrash Sensor Right\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for robot obstacle avoidance, touchless dispensers, automatic doors, object counters, parking aids, and level alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eReed Switch Module\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput format\u003c\/th\u003e\n\u003ctd\u003eDigital switching output ( 0 and 1 )\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V to 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePCB Size\u003c\/th\u003e\n\u003ctd\u003e32mm x 14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eThink of any switch as a bridge\u003c\/th\u003e\n\u003ctd\u003ewhen it’s open, current can’t flow; when closed, current flows freely. Reed switches behave the same, but they are activated magnetically instead of physically.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eproximity presence sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Reed Switch Module\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Reed Switch Module measure?\u003c\/strong\u003e\n It is designed to measure magnetic field or magnetic presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761348796705,"sku":"AB224","price":35.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/reed-switch-module-69.jpg?v=1689317022"},{"product_id":"water-flow-sensor-g1-4","title":"Water Flow Sensor YF-S401 - 0.3-6L\/min Hall Effect","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eTrack Water or Liquid Flow with a Simple Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eWater Flow Sensor YF-S401\u003c\/strong\u003e is a flow sensor designed for liquid metering, pump feedback, and water system monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eFlow Rate Range:\u003c\/strong\u003e 1~ 5L\/min; \u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e DC 5V~24V; \u003cstrong\u003eOutput Pulse Duty Cycle:\u003c\/strong\u003e 50% ± 10%.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Flow readings depend on liquid type, pipe size, and mounting direction. Calibrate in your own system for the best result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact, Easy to Install:\u003c\/strong\u003e Compact, Easy to Install\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh Sealing Performance:\u003c\/strong\u003e High Sealing Performance\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh Quality Hall Effect Sensor:\u003c\/strong\u003e High Quality Hall Effect Sensor\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e F = (98 * Q) ± 2% Q = L \/ MIN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e 50% ± 10%\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e 1~ 5L\/min\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater Flow Sensor YF-S401\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eflow sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g1\"\u003eWater Flow Sensor G1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflow sensor\u003c\/td\u003e\n\u003ctd\u003ehall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g3-4\"\u003eLiquid Flow Meter - Plastic 3\/4\" NPS Threaded\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflow sensor\u003c\/td\u003e\n\u003ctd\u003ehall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g1-2\"\u003eWater Hall Flow Sensor G1\/2\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ehall effect flow sensor with UART\u003c\/td\u003e\n\u003ctd\u003eSPI interface, hall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for smart water meters, coolant flow alarms, dosing systems, beverage dispensers, and irrigation monitors.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include hose fittings, clamps, and a waterproof enclosure, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eWater Flow Sensor YF-S401\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eFlow Pulse Characteristics\u003c\/th\u003e\n\u003ctd\u003eF = (98 * Q) ± 2% Q = L \/ MIN\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput Pulse Duty Cycle\u003c\/th\u003e\n\u003ctd\u003e50% ± 10%\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput Pulse High Level\u003c\/th\u003e\n\u003ctd\u003e\u0026gt; DC 4.7V (input voltage DC 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eFlow Rate Range\u003c\/th\u003e\n\u003ctd\u003e1~ 5L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Voltage\u003c\/th\u003e\n\u003ctd\u003eDC 5V~24V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMini. Working Voltage\u003c\/th\u003e\n\u003ctd\u003eDC 4.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMax. Working Current\u003c\/th\u003e\n\u003ctd\u003e15mA (DC 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInternal Diameter\u003c\/th\u003e\n\u003ctd\u003e1.2mm;\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eWater Flow Sensor YF-S401\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Flow readings depend on liquid type, pipe size, and mounting direction. Calibrate in your own system for the best result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Water Flow Sensor YF-S401\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Water Flow Sensor YF-S401 measure?\u003c\/strong\u003e\n It is designed to measure liquid or air flow.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761348862241,"sku":"AB705","price":218.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/water-flow-sensor-for-arduino-1-8-70.jpg?v=1689317026"},{"product_id":"water-flow-sensor-g1-2","title":"Water Hall Flow Sensor G1\/2 - 1-30L\/min YF-S201","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eTrack Water or Liquid Flow with a Simple Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eWater Hall Flow Sensor G1\/2\u003c\/strong\u003e is a hall effect flow sensor with uart designed for liquid metering, pump feedback, and water system monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 1 to 30 Liters\/Minute; \u003cstrong\u003eHumidity Range:\u003c\/strong\u003e 35%–80% RH; \u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 5V to 18V DC (min tested: 4.5V).\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Flow readings depend on liquid type, pipe size, and mounting direction. Calibrate in your own system for the best result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Sealed integrated magnetic hall effect sensor outputs an electrical pulse with every revolution\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Hall Effect\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e 5V TTL\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e 1 to 30 Liters\/Minute\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5V to 18V DC (min tested: 4.5V)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 15mA @ 5V\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater Hall Flow Sensor G1\/2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ehall effect flow sensor with UART\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g1\"\u003eWater Flow Sensor G1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflow sensor\u003c\/td\u003e\n\u003ctd\u003ehall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g3-4\"\u003eLiquid Flow Meter - Plastic 3\/4\" NPS Threaded\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflow sensor\u003c\/td\u003e\n\u003ctd\u003ehall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g1-4\"\u003eWater Flow Sensor YF-S401\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflow sensor\u003c\/td\u003e\n\u003ctd\u003eSPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for smart water meters, coolant flow alarms, dosing systems, beverage dispensers, and irrigation monitors.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include hose fittings, clamps, and a waterproof enclosure, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eWater Hall Flow Sensor G1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSensor Type\u003c\/th\u003e\n\u003ctd\u003eHall Effect\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput Type\u003c\/th\u003e\n\u003ctd\u003e5V TTL\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e1 to 30 Liters\/Minute\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eHumidity Range\u003c\/th\u003e\n\u003ctd\u003e35%–80% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Voltage\u003c\/th\u003e\n\u003ctd\u003e5V to 18V DC (min tested: 4.5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCurrent Draw\u003c\/th\u003e\n\u003ctd\u003e15mA @ 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003ctd\u003e±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePipe Size\u003c\/th\u003e\n\u003ctd\u003e1\/2\" nominal thread (0.78\" OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eTX\u003c\/strong\u003e and \u003cstrong\u003eRX\u003c\/strong\u003e to a serial-capable controller at the correct logic level and baud rate. Flow readings depend on liquid type, pipe size, and mounting direction. Calibrate in your own system for the best result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Water Hall Flow Sensor G1\/2\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Water Hall Flow Sensor G1\/2 measure?\u003c\/strong\u003e\n It is designed to measure magnetic field or magnetic presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this UART sensor?\u003c\/strong\u003e\n This version uses UART or serial output, so you connect power plus TX and RX at the correct logic level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761349058849,"sku":"AJ102","price":247.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/water-flow-sensor-g1-2-71.jpg?v=1689317031"},{"product_id":"capacitive-touch-module-4-channel","title":"TTP224 Capacitive Touch Module 4-Channel - Digital Out","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Touch Input Without Mechanical Buttons\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eCapacitive Touch Module 4 Channel TTP224\u003c\/strong\u003e is a capacitive touch sensor designed for touch interfaces, hidden controls, touchless panels, and human input projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eVoltage:\u003c\/strong\u003e 2.4V – 5.5V; \u003cstrong\u003eSize:\u003c\/strong\u003e 35mm x 29mm.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eLow power selection:\u003c\/strong\u003e Low power selection\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMain chip:\u003c\/strong\u003e Onboard TTP224\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 2.4V – 5.5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 35mm x 29mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacitive Touch Module 4 Channel TTP224\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-touch-module\"\u003eCapacitive Touch Module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor with digital output\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch input\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-touch-sensor-toggle\"\u003eCapacitive Touch Sensor - Toggle\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch input\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-touch-12-key-sensor-breakout-mpr121\"\u003eCapacitive Touch 12-Key Sensor Breakout MPR121\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor with I2C\u003c\/td\u003e\n\u003ctd\u003e12-key input, I2C interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for hidden control panels, touch lamps, menu buttons, smart mirrors, and interactive displays.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eCapacitive Touch Module 4 Channel TTP224\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eIC\u003c\/th\u003e\n\u003ctd\u003eOnboard TTP224\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e2.4V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e35mm x 29mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eproximity presence sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eCapacitive Touch Module 4 Channel TTP224\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Capacitive Touch Module 4 Channel TTP224\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Capacitive Touch Module 4 Channel TTP224 measure?\u003c\/strong\u003e\n It is designed to measure touch input from a finger or conductive surface.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761357218081,"sku":"2368","price":69.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/capacitive-touch-module-4-channel-white.jpg?v=1778912218"},{"product_id":"capacitive-touch-sensor-toggle","title":"Capacitive Touch Sensor Toggle Module","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Touch Input Without Mechanical Buttons\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eCapacitive Touch Sensor - Toggle\u003c\/strong\u003e is a capacitive touch sensor designed for touch interfaces, hidden controls, touchless panels, and human input projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eCategory:\u003c\/strong\u003e proximity presence sensors.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eLow power consumption:\u003c\/strong\u003e Low power consumption\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCapacitive Touch Sensor Toggle x1:\u003c\/strong\u003e Capacitive Touch Sensor Toggle x1\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e obstacle detection, touchless triggers, object counting, and simple automation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacitive Touch Sensor - Toggle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-touch-module\"\u003eCapacitive Touch Module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor with digital output\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch input\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-touch-sensor-cap1188-8-key-breakout-i2c-or-spi\"\u003eCapacitive Touch Sensor CAP1188 8 Key Breakout I2C or SPI\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor with I2C\u003c\/td\u003e\n\u003ctd\u003e8-key input, I2C interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-touch-12-key-sensor-breakout-mpr121\"\u003eCapacitive Touch 12-Key Sensor Breakout MPR121\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch sensor with I2C\u003c\/td\u003e\n\u003ctd\u003e12-key input, I2C interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for hidden control panels, touch lamps, menu buttons, smart mirrors, and interactive displays.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eCapacitive Touch Sensor - Toggle\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eproximity presence sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eCapacitive Touch Sensor - Toggle\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Capacitive Touch Sensor - Toggle\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Capacitive Touch Sensor - Toggle measure?\u003c\/strong\u003e\n It is designed to measure touch input from a finger or conductive surface.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761375928609,"sku":"AB107","price":55.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/capacitive-touch-sensor-toggle-hires.jpg?v=1778921317"},{"product_id":"digital-light-sensor-bh1750fvi","title":"Light Sensor Digital BH1750FVI - I2C Lux Meter","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eLight Sensor Digital BH1750FVI\u003c\/strong\u003e is a light sensor with i2c designed for light logging, auto-brightness control, and optical sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 3.3V~6V; \u003cstrong\u003eInterface:\u003c\/strong\u003e I2C.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Wide range and High resolution (1 ~ 65535 lx)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDigital Light Sensor - BH1750FVI x1:\u003c\/strong\u003e Digital Light Sensor - BH1750FVI x1\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V~6V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e I2C\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Sensor Digital BH1750FVI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/light-sensor-photoresistor-module-for-arduino-2\"\u003eLight Sensor Photoresistor Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003epH sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adafruit-tsl2591-high-dynamic-range-digital-light-sensor-stemma-qt\"\u003eAdafruit TSL2591 High Dynamic Range Digital Light Sensor - STEMMA QT\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eSTEMMA QT connector, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/light-analog-log-scale-sensor-ga1a12s202\"\u003eLight Analog Log-Scale Sensor GA1A12S202\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for light meters, line followers, UV monitors, auto-brightness systems, and optical experiments.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus an \u003ca href=\"\/search?q=I2C+cable\"\u003eI2C cable\u003c\/a\u003e or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include I2C cables, pull-up friendly boards, OLED displays, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eLight Sensor Digital BH1750FVI\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V~6V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eI2C\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eoptical light imaging photon sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect \u003cstrong\u003eVCC\u003c\/strong\u003e, \u003cstrong\u003eGND\u003c\/strong\u003e, \u003cstrong\u003eSDA\u003c\/strong\u003e, and \u003cstrong\u003eSCL\u003c\/strong\u003e to your controller. Use the correct board voltage and I2C address in your code.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Light Sensor Digital BH1750FVI\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Light Sensor Digital BH1750FVI measure?\u003c\/strong\u003e\n It is designed to measure light, color, or optical changes.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this I2C sensor?\u003c\/strong\u003e\n This version uses I2C, so you usually connect VCC, GND, SDA, and SCL.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761382777121,"sku":"AB008","price":77.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/light-sensor-digital-bh1750fvi-89.jpg?v=1689317095"},{"product_id":"vibration-sensor-module-sw-420","title":"SW-420 Vibration Sensor Module - Adjustable Sensitivity","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Sound and Vibration for Smarter Projects\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eVibration Sensor Module SW 420\u003c\/strong\u003e is a vibration sensor with digital output designed for sound detection, vibration alerts, and machine monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eInterface:\u003c\/strong\u003e Digital GPIO.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Digital GPIO\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e sound detection, knock sensing, vibration alerts, and machine monitoring\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVibration Sensor Module SW 420\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/piezo-disk-vibration-sensor-digital-gravity\"\u003ePiezo Disk Vibration Sensor Digital Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/piezo-vibration-sensor-grove\"\u003ePiezo Vibration Sensor Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eSPI interface, capacitive touch input\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/piezo-vibration-sensor-small-vertical\"\u003ePiezo Vibration Sensor Small Vertical\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor\u003c\/td\u003e\n\u003ctd\u003eSPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for clap switches, knock locks, vibration alarms, sound level demos, and machine monitoring.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eVibration Sensor Module SW 420\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eDigital GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eacoustic sound vibration sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Vibration Sensor Module SW 420\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Vibration Sensor Module SW 420 measure?\u003c\/strong\u003e\n It is designed to measure vibration, sound, or impact.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761390510369,"sku":"AB275","price":37.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/vibration-sensor-module-sw-420-93.jpg?v=1689317109"},{"product_id":"flame-sensor-analog-and-digital","title":"Flame Sensor Module for Arduino - Digital + Analog","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eFlame Sensor for Arduino\u003c\/strong\u003e is a light sensor with uart designed for light logging, optical switching, line tracking, and brightness-aware projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 3.3 V to 5 V DC; \u003cstrong\u003eTwo outputs:\u003c\/strong\u003e use D0 (LM393 comparator) for on\/off alarms, or A0 to read intensity via ADC.; \u003cstrong\u003eInterface pins:\u003c\/strong\u003e VCC, GND, D0, A0.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eFlame sensor module (Analog + Digital):\u003c\/strong\u003e Flame sensor module (Analog + Digital)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e IR flame sensor (photodiode\/phototransistor tuned to ~760–1100 nm)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e Up to ~80–100 cm for a lighter flame in dim light ( depends on flame size \u0026amp; ambient IR )\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e VCC, GND, D0, A0\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3 V to 5 V DC\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e Small module; fits breadboards and mini project boxes (dimensions vary slightly by batch)\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlame Sensor for Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with UART\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flame-sensor-analog\"\u003eFlame Sensor Analog\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flame-analog-sensor-gravity\"\u003eFlame Analog Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, remote probe format\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sensors-optical-light-imaging-photon-sensors-ambient-light-analog-sensor\"\u003eLight Ambient Analog Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for automatic brightness control, line followers, light meters, UV monitors, flame detection, and optical encoders.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include USB-to-serial tools, level-safe controllers, displays, and data loggers, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eFlame Sensor for Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSensor type\u003c\/th\u003e\n\u003ctd\u003eIR flame sensor (photodiode\/phototransistor tuned to ~760–1100 nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLogic level\u003c\/th\u003e\n\u003ctd\u003e3.3\/5 V compatible digital output (module-dependent; typical TTL high ≈ VCC)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTypical range\u003c\/th\u003e\n\u003ctd\u003eUp to ~80–100 cm for a lighter flame in dim light ( depends on flame size \u0026amp; ambient IR )\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface pins\u003c\/th\u003e\n\u003ctd\u003eVCC, GND, D0, A0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003eD0 (digital, TTL, threshold via LM393) • A0 (analog voltage proportional to IR intensity)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTwo outputs\u003c\/th\u003e\n\u003ctd\u003euse D0 (LM393 comparator) for on\/off alarms, or A0 to read intensity via ADC.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSupply voltage\u003c\/th\u003e\n\u003ctd\u003e3.3 V to 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eBoard size\u003c\/th\u003e\n\u003ctd\u003eSmall module; fits breadboards and mini project boxes (dimensions vary slightly by batch)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eTX\u003c\/strong\u003e and \u003cstrong\u003eRX\u003c\/strong\u003e to a serial-capable controller at the correct logic level and baud rate.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Flame Sensor for Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Flame Sensor for Arduino measure?\u003c\/strong\u003e\n It is designed to measure light, color, or optical changes.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this UART sensor?\u003c\/strong\u003e\n This version uses UART or serial output, so you connect power plus TX and RX at the correct logic level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761391231265,"sku":"AB122","price":45.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/flame-sensor-for-arduino-94.jpg?v=1689317114"},{"product_id":"flame-sensor-analog","title":"DFRobot Analog Flame Sensor - SEN02011F","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eFlame Sensor Analog\u003c\/strong\u003e is a light sensor with analog and digital output designed for light logging, optical switching, line tracking, and brightness-aware projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eInterface:\u003c\/strong\u003e Analog and digital.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Analog and digital\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e light logging, optical switching, line tracking, and brightness-aware projects\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlame Sensor Analog\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flame-analog-sensor-gravity\"\u003eFlame Analog Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, remote probe format\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flame-sensor-analog-and-digital\"\u003eFlame Sensor for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with UART\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sensors-optical-light-imaging-photon-sensors-ambient-light-analog-sensor\"\u003eLight Ambient Analog Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for automatic brightness control, line followers, light meters, UV monitors, flame detection, and optical encoders.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eFlame Sensor Analog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eQuick response time\u003c\/th\u003e\n\u003ctd\u003eFlame sensor analogs have fast response times, enabling them to detect flames rapidly and trigger appropriate safety measures promptly.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWide detection range\u003c\/th\u003e\n\u003ctd\u003eThey can detect flames from a distance, allowing for flexible installation and coverage of larger areas.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eReliable flame detection\u003c\/th\u003e\n\u003ctd\u003eThese sensors are designed to accurately detect flames and differentiate them from other sources of light, such as sunlight or artificial lighting.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCompatibility with analog systems\u003c\/th\u003e\n\u003ctd\u003eThe analog output signal of these sensors makes them compatible with a wide range of analog control and monitoring systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eAnalog and digital\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eoptical light imaging photon sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eMany modules in this style expose both \u003cstrong\u003eanalog\u003c\/strong\u003e and \u003cstrong\u003edigital\u003c\/strong\u003e pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Flame Sensor Analog\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Flame Sensor Analog measure?\u003c\/strong\u003e\n It is designed to measure light, color, or optical changes.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog and digital sensor?\u003c\/strong\u003e\n This module may provide both analog and digital outputs, depending on how you wire and read it.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761391460641,"sku":"SEN02011F","price":57.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/flame-sensor-analog-white.jpg?v=1778911630"},{"product_id":"humidity-sensor-module-hr202","title":"Humidity Sensor Module HR202 - Resistive Humidity","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Temperature and Heat with Reliable Sensor Feedback\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eHumidity Sensor Module HR202\u003c\/strong\u003e is a humidity sensor designed for temperature logging, thermal control, weather nodes, and equipment monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 3.3V to 5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e Digital GPIO.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Digital output and you can change when to output 1 and 0.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHumidity Sensor Module - HR202 x1:\u003c\/strong\u003e Humidity Sensor Module - HR202 x1\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V to 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 3.2cm X 1.4cm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Digital GPIO\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Sensor Module HR202\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ehumidity sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-and-humidity-sensor-dht22-gravity\"\u003eTemperature and Humidity Sensor DHT22 Module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature and humidity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output, humidity sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-humidity-sensor-hdc1000-grove\"\u003eTemperature Humidity Sensor HDC1080\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature and humidity sensor with I2C\u003c\/td\u003e\n\u003ctd\u003edigital output, humidity sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-humidity-mth02-digital-sensor\"\u003eTemperature \u0026amp; Humidity MTH02 Digital Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature and humidity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output, humidity sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for thermostats, incubators, weather stations, battery packs, 3D printer enclosures, and cold-chain logging.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include probe mounts, thermal paste if needed, and a data logger, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHumidity Sensor Module HR202\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V to 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePCB Dimension\u003c\/th\u003e\n\u003ctd\u003e3.2cm X 1.4cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eDigital GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003ethermal heat temperature sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code. Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Humidity Sensor Module HR202\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Humidity Sensor Module HR202 measure?\u003c\/strong\u003e\n It is designed to measure humidity.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761391690017,"sku":"AB222","price":55.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/humidity-sensor-module-hr202-97.jpg?v=1689317128"},{"product_id":"pir-motion-sensor-module-digital","title":"HC-SR501 PIR Motion Sensor Module - Digital Output","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Nearby Objects Without Contact\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003ePIR Motion Sensor Module Digital HC-SR501\u003c\/strong\u003e is a proximity presence sensor module with digital output designed for presence sensing, short-range detection, and touchless automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eInput Voltage:\u003c\/strong\u003e DC 4.5-20V; \u003cstrong\u003eOutput:\u003c\/strong\u003e 3.3V.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eOptional temperature compensation:\u003c\/strong\u003e Optional temperature compensation\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Output goes high when objects enter the sensing range, and automatically returns to low when an object leaves.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWide operating voltage range:\u003c\/strong\u003e Wide operating voltage range\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 50uA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e DC 4.5-20V\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePIR Motion Sensor Module Digital HC-SR501\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eproximity presence sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/motion-pir-sensor-gravity\"\u003eMotion PIR Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eproximity presence sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003einfrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/acrylic-bracket-for-hc-sr501-pir-sensor-2\"\u003eAcrylic Bracket for HC-SR501 PIR Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eproximity presence sensor module\u003c\/td\u003e\n\u003ctd\u003emodel HC-SR501\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/pir-motion-sensor-hc-sr505\"\u003ePIR Motion Sensor HC SR505\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eproximity presence sensor module\u003c\/td\u003e\n\u003ctd\u003edigital output, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for touchless dispensers, object counters, door triggers, small robots, and presence alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003ePIR Motion Sensor Module Digital HC-SR501\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eStatic current\u003c\/th\u003e\n\u003ctd\u003e50uA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput high signal\u003c\/th\u003e\n\u003ctd\u003eeasy to attain docking with the various sorts of circuits.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput signal\u003c\/th\u003e\n\u003ctd\u003e0,3V or 5V (Output high when motion detected)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003eDC 4.5-20V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eRepeatable\u003c\/th\u003e\n\u003ctd\u003ePIR Module HC-SR501 sensor stays high as long as an object is detected during the delay time.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSentry Angle\u003c\/th\u003e\n\u003ctd\u003e110 degree\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eNon-repeatable\u003c\/th\u003e\n\u003ctd\u003ePIR Module sensor gets downward after the delay, irrespective of the presence of the object.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × PIR Motion Sensor Module Digital HC-SR501\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the PIR Motion Sensor Module Digital HC-SR501 measure?\u003c\/strong\u003e\n It is designed to measure nearby objects, remote IR signals, or motion.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761404502305,"sku":"AM298","price":85.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/pir-motion-sensor-module-digital-hc-sr501-104.jpg?v=1689317155"},{"product_id":"sensor-shield-for-arduino","title":"Sensor Shield for Arduino - Multi-Sensor Breakout V5","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Reliable Sensing to Your Next Electronics Build\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eSensor Shield For Arduino\u003c\/strong\u003e is a sensor expansion shield designed for sensing, logging, and automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eDimension:\u003c\/strong\u003e 57mm x 57.5mm; \u003cstrong\u003eCategory:\u003c\/strong\u003e arduino shields.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 57mm x 57.5mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e Useful in sensing, logging, and automation projects\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Shield For Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esensor expansion shield\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sensor-shield-for-arduino-mega-v2\"\u003eSensor Shield for Arduino Mega V2\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esensor expansion shield with I2C\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/mega-sensor-shield-v2-4-arduino-mega-compatible\"\u003eMega Sensor Shield V2.4 (Compatible with Arduino Mega)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esensor expansion shield with UART\u003c\/td\u003e\n\u003ctd\u003emodel V2.4\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for general sensing, logging, and automation builds.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eSensor Shield For Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003ctd\u003e57mm x 57.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003earduino shields\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eSensor Shield For Arduino\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Sensor Shield For Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Sensor Shield For Arduino measure?\u003c\/strong\u003e\n It is designed to measure expanded connections for many sensors and modules.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761410826529,"sku":"2370","price":155.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/sensor-shield-for-arduino-1.jpg?v=1781152510"},{"product_id":"soil-moisture-sensor-analog-and-digital","title":"Soil Moisture Sensor - Analog\/Digital 2-Probe Module","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Chemical Conditions with a Sensor Made for Embedded Projects\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eSoil Moisture Sensor Analog Digital\u003c\/strong\u003e is a soil moisture sensor with analog and digital output designed for water quality work, lab projects, and environmental monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eOperating voltage:\u003c\/strong\u003e 3.3V – 5V; \u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 3.3V-5V; \u003cstrong\u003eOutput mode:\u003c\/strong\u003e Dual output mode (analog output).\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eDigital output, easy to adjust:\u003c\/strong\u003e Digital output, easy to adjust\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e DO port output will be high in case the module is unable to reach the set threshold.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e Dual output mode (analog output)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V – 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 3 x 1.5 cm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Analog Output Interface\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil Moisture Sensor Analog Digital\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esoil moisture sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sensors-soil-moisture-sensor-immersion-gold\"\u003eSoil Moisture Sensor Immersion Gold\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esoil moisture sensor\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/soil-moisture-sensor-corrosion-resistant\"\u003eSoil Moisture Sensor Corrosion Resistant\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esoil moisture sensor\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/moisture-sensor-grove\"\u003eMoisture Sensor Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003echemical sensor module\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for water test rigs, hydroponics monitors, lab logging, aquarium control, and environmental stations.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include calibration solutions, probe holders, and a data logger, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eSoil Moisture Sensor Analog Digital\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput mode\u003c\/th\u003e\n\u003ctd\u003eDual output mode (analog output)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V – 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePanel PCD Dimensions\u003c\/th\u003e\n\u003ctd\u003e3 x 1.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSoil Probe Dimensions\u003c\/th\u003e\n\u003ctd\u003e6 x 3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAO\u003c\/th\u003e\n\u003ctd\u003eAnalog Output Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDO\u003c\/th\u003e\n\u003ctd\u003eDigital Output Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eGND\u003c\/th\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eMany modules in this style expose both \u003cstrong\u003eanalog\u003c\/strong\u003e and \u003cstrong\u003edigital\u003c\/strong\u003e pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Soil Moisture Sensor Analog Digital\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Soil Moisture Sensor Analog Digital measure?\u003c\/strong\u003e\n It is designed to measure moisture level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog and digital sensor?\u003c\/strong\u003e\n This module may provide both analog and digital outputs, depending on how you wire and read it.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761412038945,"sku":"AB110","price":34.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/soil-moisture-sensor-analog-digital-109.jpg?v=1689317175"},{"product_id":"vibration-switch-hdx2","title":"Vibration Switch HDX2 - Spring-Type Shake Sensor","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Reliable Sensing to Your Next Electronics Build\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eVibration Switch - HDX2\u003c\/strong\u003e is a vibration sensor designed for sound detection, vibration alerts, and machine monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eElectrical Characteristics:\u003c\/strong\u003e Voltage\u0026lt;24V;Current\u0026lt;1mA; \u003cstrong\u003eCategory:\u003c\/strong\u003e button switch.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e The appearance of the product of a thermal control package, waterproof, moisture and dust.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Special spec: No position, vibration resistance of size when the intensity varies with the vibration.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e Useful in sensing, logging, and automation projects\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVibration Switch - HDX2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/rotary-switch-analog-module-v1-gravity\"\u003eRotary Switch Analog Module V1 Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module with analog output\u003c\/td\u003e\n\u003ctd\u003eSPI interface, analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/digital-push-button\"\u003eDigital Push Button\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/button-digital-for-arduino-and-raspberry-pi\"\u003eButton Digital For Arduino and Raspberry Pi\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for clap switches, knock locks, vibration alarms, sound level demos, and machine monitoring.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eVibration Switch - HDX2\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Characteristics\u003c\/th\u003e\n\u003ctd\u003eNo position, vibration resistance of size when the intensity varies with the vibration.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eElectrical Characteristics\u003c\/th\u003e\n\u003ctd\u003eVoltage\u0026lt;24V;Current\u0026lt;1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003ebutton switch\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eVibration Switch - HDX2\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Vibration Switch - HDX2\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Vibration Switch - HDX2 measure?\u003c\/strong\u003e\n It is designed to measure vibration, sound, or impact.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761419182369,"sku":"SMS10222S","price":75.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/vibration-switch-hdx2-hires.jpg?v=1778921233"},{"product_id":"gas-sensor-mq135","title":"MQ-135 Air Quality Gas Sensor - Analog Module","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Gas Changes with a Practical Air Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eGas Sensor MQ135\u003c\/strong\u003e is a gas sensor with uart designed for air-quality projects, leak alerts, and ventilation monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eWorking voltage:\u003c\/strong\u003e DC 5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e UART.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e DC 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 150mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e TTL output\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 32mm x 22m x 27mm(HIGH 27mm)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e UART\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGas Sensor MQ135\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with UART\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-sensor-mq5\"\u003eGas Sensor MQ5 Analog LPG For Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/analog-smoke-lpg-co-gas-sensor-mq2\"\u003eGas Analog Smoke LPG CO Sensor MQ2\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-co-combustible-analog-sensor-mq9-for-arduino-gravity\"\u003eGas CO Combustible Analog Sensor MQ9 For Arduino Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for gas leak alarms, indoor air monitors, safety demos, ventilation control, and science projects.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include fresh-air test setup, an enclosure with vents, and a display for local readout, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eGas Sensor MQ135\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking voltage\u003c\/th\u003e\n\u003ctd\u003eDC 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Current\u003c\/th\u003e\n\u003ctd\u003e150mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDOUT\u003c\/th\u003e\n\u003ctd\u003eTTL output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAOUT\u003c\/th\u003e\n\u003ctd\u003eAnalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003ctd\u003e32mm x 22m x 27mm(HIGH 27mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePreheat time\u003c\/th\u003e\n\u003ctd\u003eOver 20s\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eUART\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eTX\u003c\/strong\u003e and \u003cstrong\u003eRX\u003c\/strong\u003e to a serial-capable controller at the correct logic level and baud rate. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Gas Sensor MQ135\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Gas Sensor MQ135 measure?\u003c\/strong\u003e\n It is designed to measure gas concentration changes in air.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this UART sensor?\u003c\/strong\u003e\n This version uses UART or serial output, so you connect power plus TX and RX at the correct logic level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761426129185,"sku":"2430","price":165.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/gas-sensor-mq135-117.jpg?v=1689317201"},{"product_id":"tilt-switch","title":"Tilt Switch Module for Arduino - Ball-Type","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Position, Angle, or Motion with Reliable Sensor Data\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eTilt Switch Module for Arduino\u003c\/strong\u003e is a tilt sensor designed for position feedback, angle sensing, speed measurement, and motion control. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 5VDC.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5VDC\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 25 x 15 x 5 mm (L x W x H)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e position feedback, angle sensing, speed measurement, and motion control\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTilt Switch Module for Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003etilt sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/tilt-switch-grove\"\u003eTilt Switch Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etilt sensor with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/tilt-sensor-module\"\u003eTilt Sensor Module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etilt sensor\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/crash-sensor-module-for-arduino\"\u003eCrash Sensor Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor with digital output\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for shaft encoders, speed counters, linear feedback, smart knobs, and actuator control.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eTilt Switch Module for Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003ctd\u003e5VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e25 x 15 x 5 mm (L x W x H)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eposition angle displacement speed acceleration sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eTilt Switch Module for Arduino\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Tilt Switch Module for Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Tilt Switch Module for Arduino measure?\u003c\/strong\u003e\n It is designed to measure motion, tilt, rotation, or orientation.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Usually yes. Motion sensors often benefit from software calibration to improve offset, drift, and orientation accuracy.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761427308833,"sku":"2440","price":49.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/tilt-switch-module-for-arduino-120.jpg?v=1689317213"},{"product_id":"tilt-sensor-module","title":"Tilt Sensor Module - Mercury-Free Ball-Switch","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Position, Angle, or Motion with Reliable Sensor Data\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eTilt Sensor Module\u003c\/strong\u003e is a tilt sensor designed for position feedback, angle sensing, speed measurement, and motion control. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 3.3V-5V.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eLow power consumption:\u003c\/strong\u003e Low power consumption\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensitivity adjustable:\u003c\/strong\u003e Sensitivity adjustable\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V-5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 3.2cm * 1.4cm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTilt Sensor Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003etilt sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/tilt-switch\"\u003eTilt Switch Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etilt sensor\u003c\/td\u003e\n\u003ctd\u003ebreakout-board format\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/tilt-switch-grove\"\u003eTilt Switch Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etilt sensor with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/crash-sensor-module-for-arduino\"\u003eCrash Sensor Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor with digital output\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for shaft encoders, speed counters, linear feedback, smart knobs, and actuator control.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eTilt Sensor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimension of the board\u003c\/th\u003e\n\u003ctd\u003e3.2cm * 1.4cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eposition angle displacement speed acceleration sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eTilt Sensor Module\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Tilt Sensor Module\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Tilt Sensor Module measure?\u003c\/strong\u003e\n It is designed to measure motion, tilt, rotation, or orientation.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Usually yes. Motion sensors often benefit from software calibration to improve offset, drift, and orientation accuracy.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761429733665,"sku":"2441","price":55.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/tilt-sensor-module-121.jpg?v=1689317218"},{"product_id":"pulse-sensor-arduino-compatible","title":"Pulse Sensor Arduino-Compatible - Heart Rate Detector","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Health and Biometric Sensing to Your Next Build\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003ePulse Sensor Arduino Compatible\u003c\/strong\u003e is a biometric sensor designed for wearables, pulse demos, biometric logging, and health-focused prototypes. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eCategory:\u003c\/strong\u003e health sensor.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e This module is meant for learning, prototyping, and general wellness projects. It is not a medical device and should not be used for diagnosis.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e wearables, pulse demos, biometric logging, and health-focused prototypes\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePulse Sensor Arduino Compatible\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/pulse-sensor-kit\"\u003ePulse Sensor Kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/ecg-heart-pulse-sensor-module-ad8232\"\u003eECG Heart Pulse Sensor Module AD8232\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor\u003c\/td\u003e\n\u003ctd\u003emodel AD8232\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/heart-rate-monitor-sensor-for-arduino-gravity\"\u003eHeart Rate Monitor Sensor For Arduino Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for heart-rate demos, wearable prototypes, pulse logging, finger-clip projects, and education kits.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003ePulse Sensor Arduino Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003ehealth sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003ePulse Sensor Arduino Compatible\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. This module is meant for learning, prototyping, and general wellness projects. It is not a medical device and should not be used for diagnosis.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Pulse Sensor Arduino Compatible\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Pulse Sensor Arduino Compatible measure?\u003c\/strong\u003e\n It is designed to measure pulse, heart-rate, or ECG-related signals.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761440022817,"sku":"AB393","price":113.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/pulse-sensor-arduino-compatible-124.jpg?v=1689317232"},{"product_id":"dfrobot-ultrasonic-sensor-urm37","title":"DFRobot URM37 Ultrasonic Ranging Sensor - 4-500cm, I2C\/UART\/PWM","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Reliable Ultrasonic Ranging Sensor URM37 Sensing to Your Next Build\u003c\/h2\u003e\n\n \u003cp\u003e\n Ultrasonic Ranging Sensor URM37 URM37 Ultrasonic Ranging Sensor is a versatile distance sensor for robotics, tank level checks, obstacle detection, and automation projects.\n \u003c\/p\u003e\n\n \u003cp\u003e\n It supports several output methods, making it easier to fit into many Arduino and Raspberry Pi style builds.\n \u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n \u003cstrong\u003eImportant:\u003c\/strong\u003e Use the official DFRobot links below for wiring, sample code, downloads, and the latest setup notes for this SKU.\n \u003c\/div\u003e\n\n \u003ch3\u003eWhy you'll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eWide measuring range:\u003c\/strong\u003e Useful for near and mid-range distance work\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMultiple output modes:\u003c\/strong\u003e Analog, switch, serial, and PWM options\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBuilt-in temperature compensation:\u003c\/strong\u003e Helps improve reading stability\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e3.3V to 5.5V support:\u003c\/strong\u003e Easy match for many controller boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRobot-friendly design:\u003c\/strong\u003e Good fit for motion and obstacle projects\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGravity-ready:\u003c\/strong\u003e Easy plug-and-play wiring for fast setup\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003e\n This part fits monitoring, measurement, logging, alarms, and automation builds. It works well in Arduino, ESP32, and Raspberry Pi style projects where you need reliable real-world data from the ultrasonic ranging sensor urm37.\n \u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003e\n Pair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus sensor cables, headers, or a matching expansion shield for faster setup.\n \u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003e\n Useful add-ons include displays, data logging modules, waterproof enclosures, and matching Gravity cables or sensor shields.\n \u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct\u003c\/th\u003e\n \u003ctd\u003eUltrasonic Ranging Sensor URM37\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eSKU\u003c\/th\u003e\n \u003ctd\u003eSEN0001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003ctd\u003eDFRobot\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInterface\u003c\/th\u003e\n \u003ctd\u003ePWM, Analog\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eWide measuring range\u003c\/th\u003e\n \u003ctd\u003eUseful for near and mid-range distance work\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMultiple output modes\u003c\/th\u003e\n \u003ctd\u003eAnalog, switch, serial, and PWM options\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBuilt-in temperature compensation\u003c\/th\u003e\n \u003ctd\u003eHelps improve reading stability\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003e3.3V to 5.5V support\u003c\/th\u003e\n \u003ctd\u003eEasy match for many controller boards\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eRobot-friendly design\u003c\/th\u003e\n \u003ctd\u003eGood fit for motion and obstacle projects\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eNote\u003c\/th\u003e\n \u003ctd\u003eUse the official DFRobot resources below for wiring, code examples, and setup details.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003ePinout \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003e\n Check the supported input voltage before wiring so the module matches your controller and power source. Verify serial levels, baud rate, and pin mapping in the official DFRobot guide before first power-up. For analog readings, use a stable reference and keep wiring short when possible for cleaner signals.\n \u003c\/p\u003e\n\n \u003ch3\u003eDFRobot resources\u003c\/h3\u003e\n \u003cp\u003e\n Official product page: \u003ca href=\"https:\/\/www.dfrobot.com\/product-53.html\" target=\"_blank\" rel=\"noopener\"\u003eView on DFRobot\u003c\/a\u003e\u003cbr\u003e\n Wiki \/ documentation: \u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0001\/\" target=\"_blank\" rel=\"noopener\"\u003eOpen DFRobot wiki\u003c\/a\u003e\n \u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e\n 1 × Ultrasonic Ranging Sensor URM37\n \u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use this for logging or monitoring projects?\u003c\/strong\u003e Yes. It is a good fit for data collection, automation, and alert-based builds when paired with a supported controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it work with other boards too?\u003c\/strong\u003e Often yes, as long as voltage, interface, and pin mapping match. ESP32 and Raspberry Pi users should still check the official docs first.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhere can I find wiring and examples?\u003c\/strong\u003e Use the official DFRobot product page and wiki links below for guides, downloads, and code examples.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761444315425,"sku":"SEN0001","price":847.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/dfrobot-ultrasonic-sensor-urm37-circuitrocks.jpg?v=1780998744"},{"product_id":"uv-sensor-arduino","title":"DFRobot Gravity UV Sensor - SEN0162 ML8511","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eUV Sensor Gravity\u003c\/strong\u003e is a light sensor designed for light logging, auto-brightness control, and optical sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eIt pairs well with Arduino, ESP32, Raspberry Pi, and similar controllers for quick testing and clean integration.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e light logging, optical switching, line tracking, and brightness-aware projects\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUV Sensor Gravity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/uv-sensor-grove\"\u003eUV Sensor Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with analog output\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adafruit-veml6070-uv-index-sensor-breakout\"\u003eAdafruit VEML6070 UV Index Sensor Breakout\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eI2C interface, breakout-board format\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adafruit-ltr390-uv-light-sensor-stemma-qt-qwiic\"\u003eAdafruit LTR390 UV Light Sensor - STEMMA QT \/ Qwiic\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eSTEMMA QT connector, Qwiic connector\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for light meters, line followers, UV monitors, auto-brightness systems, and optical experiments.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eUV Sensor Gravity\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWearable technology\u003c\/th\u003e\n\u003ctd\u003eUV sensors are being incorporated into accessories or wearable technology to offer data on UV exposure for personal health and safety.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eUV sterilisation systems\u003c\/th\u003e\n\u003ctd\u003eKeeping track of the UV radiation levels in equipment like UV sterilisation chambers or cabinets.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003e UV index monitoring\u003c\/th\u003e\n\u003ctd\u003eMeasuring the UV radiation's intensity to calculate the UV index for use in weather predictions or self-monitoring UV exposure.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMonitoring the environment\u003c\/th\u003e\n\u003ctd\u003eMeasuring UV radiation levels in open spaces to examine the effects on ecosystems or agriculture.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eoptical light imaging photon sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eUV Sensor Gravity\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × UV Sensor Gravity\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the UV Sensor Gravity measure?\u003c\/strong\u003e\n It is designed to measure light, color, or optical changes.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761446609185,"sku":"SEN0162","price":635.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/uv-sensor-gravity-127.jpg?v=1689317245"},{"product_id":"temperature-sensor-ds18b20-arduino","title":"DS18B20 Temperature Sensor Module - 1-Wire Digital","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Temperature with a Sensor Made for Embedded Builds\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eTemperature Sensor DS18B20 Module for Arduino\u003c\/strong\u003e is a temperature sensor with digital output designed for temperature logging, thermal control, and equipment monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eTemperature detection range:\u003c\/strong\u003e -55 ° C ~ +125 ° C (-67 ° F ~ +257 ° F); \u003cstrong\u003eTemperature range:\u003c\/strong\u003e -55 °C ~ +125 °C; \u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3.3V to 5V.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eDigital temperature conversion and output:\u003c\/strong\u003e Digital temperature conversion and output\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBuilt-in EEPROM and temperature limit:\u003c\/strong\u003e Built-in EEPROM and temperature limit\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Digital\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e -55 ° C ~ +125 ° C (-67 ° F ~ +257 ° F)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V to 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 22 x 32mm\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Sensor DS18B20 Module for Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-sensor-waterproof-ds18b20-kit\"\u003eTemperature Sensor Waterproof DS18B20 kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature sensor with 1-Wire\u003c\/td\u003e\n\u003ctd\u003ewaterproof build, temperature sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-ds18b20-sensor-to-92-form-2\"\u003eTemperature DS18B20 Sensor TO-92 Form\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature sensor with UART\u003c\/td\u003e\n\u003ctd\u003etemperature sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-and-humidity-dht11-sensor\"\u003eTemperature and Humidity DHT11 Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature and humidity sensor\u003c\/td\u003e\n\u003ctd\u003edigital output, humidity sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for thermostats, incubators, battery monitors, weather nodes, and thermal data loggers.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include probe mounts, thermal paste if needed, and a data logger, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eTemperature Sensor DS18B20 Module for Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eDigital\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTemperature detection range\u003c\/th\u003e\n\u003ctd\u003e-55 ° C ~ +125 ° C (-67 ° F ~ +257 ° F)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTemperature range\u003c\/th\u003e\n\u003ctd\u003e-55 °C ~ +125 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSupply Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V to 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e22 x 32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003ethermal heat temperature sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power, ground, and the \u003cstrong\u003edata\u003c\/strong\u003e line to your controller. Most 1-Wire setups also need a pull-up resistor on the data line. Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Temperature Sensor DS18B20 Module for Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Temperature Sensor DS18B20 Module for Arduino measure?\u003c\/strong\u003e\n It is designed to measure temperature.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this 1-Wire sensor?\u003c\/strong\u003e\n This version uses a 1-Wire data line and usually needs a pull-up resistor on the data pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45761449165089,"sku":"2446","price":45.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/temperature-sensor-ds18b20-module-for-arduino-128.jpg?v=1689317250"},{"product_id":"sensors-optical-light-imaging-photon-sensors-ambient-light-analog-sensor","title":"DFRobot Gravity Analog Ambient Light Sensor","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Reliable Light Ambient Analog Sensor Sensing to Your Next Build\u003c\/h2\u003e\n\n \u003cp\u003e\n Light Ambient Analog Sensor light Ambient Analog Sensor helps your project react to room light, daylight, or changing brightness with a simple analog output.\n \u003c\/p\u003e\n\n \u003cp\u003e\n It is easy to add to alarms, automatic lamps, solar tracking demos, and other projects that need light level sensing.\n \u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n \u003cstrong\u003eImportant:\u003c\/strong\u003e Use the official DFRobot links below for wiring, sample code, downloads, and the latest setup notes for this SKU.\n \u003c\/div\u003e\n\n \u003ch3\u003eWhy you'll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAnalog light output:\u003c\/strong\u003e Easy to read with common controller boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWide input voltage:\u003c\/strong\u003e Works from 3.3V to 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast response:\u003c\/strong\u003e Good for quick light changes\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact board:\u003c\/strong\u003e Easy to mount in prototypes and cases\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBeginner friendly:\u003c\/strong\u003e Simple sensor for learning analog input\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGravity-ready:\u003c\/strong\u003e Easy plug-and-play wiring for fast setup\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003e\n This part fits monitoring, measurement, logging, alarms, and automation builds. It works well in Arduino, ESP32, and Raspberry Pi style projects where you need reliable real-world data from the light ambient analog sensor.\n \u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003e\n Pair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus sensor cables, headers, or a matching expansion shield for faster setup.\n \u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003e\n Useful add-ons include displays, data logging modules, waterproof enclosures, and matching Gravity cables or sensor shields.\n \u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct\u003c\/th\u003e\n \u003ctd\u003eLight Ambient Analog Sensor\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eSKU\u003c\/th\u003e\n \u003ctd\u003eDFR0026\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003ctd\u003eDFRobot\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInterface\u003c\/th\u003e\n \u003ctd\u003eAnalog\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eAnalog light output\u003c\/th\u003e\n \u003ctd\u003eEasy to read with common controller boards\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eWide input voltage\u003c\/th\u003e\n \u003ctd\u003eWorks from 3.3V to 5V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eFast response\u003c\/th\u003e\n \u003ctd\u003eGood for quick light changes\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCompact board\u003c\/th\u003e\n \u003ctd\u003eEasy to mount in prototypes and cases\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBeginner friendly\u003c\/th\u003e\n \u003ctd\u003eSimple sensor for learning analog input\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating voltage\u003c\/th\u003e\n \u003ctd\u003e3.3V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003ePinout \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003e\n Check the supported input voltage before wiring so the module matches your controller and power source. For analog readings, use a stable reference and keep wiring short when possible for cleaner signals. If you are using Gravity connectors, align the plug correctly and avoid forcing the cable into the wrong header.\n \u003c\/p\u003e\n\n \u003ch3\u003eDFRobot resources\u003c\/h3\u003e\n \u003cp\u003e\n Official product page: \u003ca href=\"https:\/\/www.dfrobot.com\/product-1004.html\" target=\"_blank\" rel=\"noopener\"\u003eView on DFRobot\u003c\/a\u003e\u003cbr\u003e\n Wiki \/ documentation: \u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr0026\/\" target=\"_blank\" rel=\"noopener\"\u003eOpen DFRobot wiki\u003c\/a\u003e\n \u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e\n 1 × Light Ambient Analog Sensor\n \u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use this for logging or monitoring projects?\u003c\/strong\u003e Yes. It is a good fit for data collection, automation, and alert-based builds when paired with a supported controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it work with other boards too?\u003c\/strong\u003e Often yes, as long as voltage, interface, and pin mapping match. ESP32 and Raspberry Pi users should still check the official docs first.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhere can I find wiring and examples?\u003c\/strong\u003e Use the official DFRobot product page and wiki links below for guides, downloads, and code examples.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761451688225,"sku":"DFR0026","price":575.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/sensors-optical-light-imaging-photon-sensors-ambient-light-analog-sensor-1.jpg?v=1781152536"},{"product_id":"sensors-soil-moisture-sensor-immersion-gold","title":"DFRobot Soil Moisture Sensor Immersion Gold - SEN0114","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Chemical Conditions with a Sensor Made for Embedded Projects\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eSoil Moisture Sensor Immersion Gold\u003c\/strong\u003e is a soil moisture sensor designed for water quality work, lab projects, and environmental monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003ePower supply:\u003c\/strong\u003e 3.3v or 5v; \u003cstrong\u003eOutput voltage signal:\u003c\/strong\u003e 0~4.2v; \u003cstrong\u003eSize:\u003c\/strong\u003e 60x20x5mm.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAnalog output(Blue wire):\u003c\/strong\u003e Analog output(Blue wire)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAnalog Sensor Cable x1:\u003c\/strong\u003e Analog Sensor Cable x1\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 0~4.2v\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 35mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 60x20x5mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Immersion Gold\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil Moisture Sensor Immersion Gold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esoil moisture sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/soil-moisture-sensor-analog-and-digital\"\u003eSoil Moisture Sensor Analog Digital\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esoil moisture sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/moisture-sensor-grove\"\u003eMoisture Sensor Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003echemical sensor module\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/soil-moisture-sensor-corrosion-resistant\"\u003eSoil Moisture Sensor Corrosion Resistant\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esoil moisture sensor\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for water test rigs, hydroponics monitors, lab logging, aquarium control, and environmental stations.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include calibration solutions, probe holders, and a data logger, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eSoil Moisture Sensor Immersion Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput voltage signal\u003c\/th\u003e\n\u003ctd\u003e0~4.2v\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003e3.3v or 5v\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCurrent\u003c\/th\u003e\n\u003ctd\u003e35mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e60x20x5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSurface finish\u003c\/th\u003e\n\u003ctd\u003eImmersion Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003echemical sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then read the sensor output with an \u003cstrong\u003eanalog-capable input\u003c\/strong\u003e or external ADC. Stable power and a clean ground help reduce noise. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Soil Moisture Sensor Immersion Gold\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Soil Moisture Sensor Immersion Gold measure?\u003c\/strong\u003e\n It is designed to measure moisture level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog sensor?\u003c\/strong\u003e\n This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761455128865,"sku":"SEN0114","price":239.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/soil-moisture-sensor-immersion-gold-130.jpg?v=1689317258"},{"product_id":"triple-axis-accelerometer-bma220","title":"DFRobot BMA220 Triple-Axis Accelerometer - SEN0168","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eTrack Motion and Orientation with One Compact Module\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eTriple Axis Accelerometer BMA220\u003c\/strong\u003e is a motion sensor module with digital output designed for motion tracking, robot balance, and orientation sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eInterface:\u003c\/strong\u003e Digital GPIO.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Digital GPIO\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e robot balancing, gesture sensing, motion tracking, and navigation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTriple Axis Accelerometer BMA220\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/accelerometer-3-axis-digital-adxl346\"\u003eAccelerometer 3-Axis Digital ADXL346\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with SPI\u003c\/td\u003e\n\u003ctd\u003eSPI interface, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adxl335-5v-ready-triple-axis-accelerometer-3g-analog-out\"\u003eADXL335 5V ready triple-axis accelerometer +-3g analog out\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/accelerometer-triple-axis-breakout-mma7361\"\u003eAccelerometer Triple Axis Breakout MMA7361\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with I2C\u003c\/td\u003e\n\u003ctd\u003eI2C interface, SPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for balancing robots, gesture controllers, motion loggers, wearables, and camera rigs.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a display, battery pack, and a solid mounting plate, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eTriple Axis Accelerometer BMA220\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eDigital GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eimu motion sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire the output pin to a \u003cstrong\u003edigital GPIO input\u003c\/strong\u003e. Check whether the module uses active-high or active-low logic in your code. Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Triple Axis Accelerometer BMA220\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Triple Axis Accelerometer BMA220 measure?\u003c\/strong\u003e\n It is designed to measure motion, tilt, rotation, or orientation.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Digital GPIO sensor?\u003c\/strong\u003e\n This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Usually yes. Motion sensors often benefit from software calibration to improve offset, drift, and orientation accuracy.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761456963873,"sku":"SEN0168","price":620.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/triple-axis-accelerometer-bma220-hires.jpg?v=1778921676"},{"product_id":"digital-push-button","title":"DFRobot Digital Push Button - DFR0029-R","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Reliable Sensing to Your Next Electronics Build\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eDigital Push Button\u003c\/strong\u003e is a button or switch input module with digital output designed for sensing, logging, and automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3.3V to 5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e Digital; \u003cstrong\u003eSize:\u003c\/strong\u003e 22x30mm.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eWide voltage range from 3.3V to 5V:\u003c\/strong\u003e Wide voltage range from 3.3V to 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Easily recognitive interfaces of sensors (\"A\" for analog and \"D\" for digital)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh quality connector:\u003c\/strong\u003e High quality connector\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Digital\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V to 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 22x30mm\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Push Button\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/button-digital-for-arduino-and-raspberry-pi\"\u003eButton Digital For Arduino and Raspberry Pi\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/vibration-switch-hdx2\"\u003eVibration Switch - HDX2\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor\u003c\/td\u003e\n\u003ctd\u003ewaterproof build\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/rotation-sensor-analog\"\u003eRotation Sensor Rotary Encoder Analog\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003erotation sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for general sensing, logging, and automation builds.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eDigital Push Button\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eDigital\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSupply Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V to 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e22x30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003ebutton switch\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eMany modules in this style expose both \u003cstrong\u003eanalog\u003c\/strong\u003e and \u003cstrong\u003edigital\u003c\/strong\u003e pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Digital Push Button\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Digital Push Button measure?\u003c\/strong\u003e\n It is designed to measure manual user input.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog and digital sensor?\u003c\/strong\u003e\n This module may provide both analog and digital outputs, depending on how you wire and read it.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761463550241,"sku":"DFR0029-R","price":179.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/digital-push-button-135.jpg?v=1689317275"},{"product_id":"sound-sensor-analog","title":"DFRobot Analog Sound Sensor - DFR0034","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Sound and Vibration for Smarter Projects\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eSound Sensor Analog\u003c\/strong\u003e is a sound sensor with analog output designed for sound detection, vibration alerts, and machine monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eVoltage range:\u003c\/strong\u003e 3.3V to 5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e Analog and digital; \u003cstrong\u003eSize:\u003c\/strong\u003e 22x32mm (approximately 0.87 x 1.26 inches).\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Easily recognitive interfaces of sensors (\"A\" for analog and \"D\" for digital)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh quality connector:\u003c\/strong\u003e High quality connector\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V to 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 22x32mm (approximately 0.87 x 1.26 inches)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Analog and digital\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Sensor Analog\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esound sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sound-sensor\"\u003eSound Sensor LM386\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esound sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sound-level-analog-meter-gravity\"\u003eSound Level Analog Meter Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esound sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/vibration-sensor-module-sw-420\"\u003eVibration Sensor Module SW 420\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003evibration sensor with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for clap switches, knock locks, vibration alarms, sound level demos, and machine monitoring.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eSound Sensor Analog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eVoltage range\u003c\/th\u003e\n\u003ctd\u003e3.3V to 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e22x32mm (approximately 0.87 x 1.26 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eAnalog and digital\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eacoustic sound vibration sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eMany modules in this style expose both \u003cstrong\u003eanalog\u003c\/strong\u003e and \u003cstrong\u003edigital\u003c\/strong\u003e pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Sound Sensor Analog\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Sound Sensor Analog measure?\u003c\/strong\u003e\n It is designed to measure sound level, audio activity, or optical fingerprint data.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog and digital sensor?\u003c\/strong\u003e\n This module may provide both analog and digital outputs, depending on how you wire and read it.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761466204449,"sku":"DFR0034","price":462.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/sound-sensor-analog-136.jpg?v=1689317279"},{"product_id":"line-tracking-sensor-arduino","title":"DFRobot Line Tracking Sensor for Arduino - SEN0017","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eUseful Sensor Feedback for Smarter Controller-Based Projects\u003c\/h2\u003e\n\n \u003cp\u003e\n The \u003cstrong\u003eLine Tracking Sensor for Arduino\u003c\/strong\u003e is a practical \u003cstrong\u003esensor\u003c\/strong\u003e from \u003cstrong\u003eCircuitrocks\u003c\/strong\u003e for students, makers, and repair-friendly builds. It fits well in projects that need feedback and detection, while keeping setup straightforward for testing and prototype work.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Compared with generic parts, this product stands out through details such as \u003cstrong\u003eLine tracking\u003c\/strong\u003e. That makes it a solid choice for Arduino, ESP32, Raspberry Pi, robotics, motion-control, and workshop projects where matching the right part from the start saves time.\n \u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n \u003cstrong\u003eImportant:\u003c\/strong\u003e Always match the electrical rating, size, and control method of this part with the rest of your setup before full-power testing.\n \u003c\/div\u003e\n\n \u003ch3\u003eWhy you'll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eLine tracking support:\u003c\/strong\u003e well suited for classroom robots and path-following projects\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAdds project feedback:\u003c\/strong\u003e adds useful value when choosing parts for a build\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful for automation logic:\u003c\/strong\u003e adds useful value when choosing parts for a build\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWorks well in test builds:\u003c\/strong\u003e adds useful value when choosing parts for a build\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy to combine with controller code:\u003c\/strong\u003e adds useful value when choosing parts for a build\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003e\n This product is a good fit for smart robots, feedback systems, environmental monitoring, and controller-based automation. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.\n \u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003e\n Most users pair this with Arduino, ESP32, or Raspberry Pi, along with jumper wires and a proper power source for the target load or sensor.\n \u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003e\n Popular add-ons depend on your build, but matching controllers, power supplies, and compatible motion parts usually make integration easier. You can also compare it with \u003ca href=\"https:\/\/circuit.rocks\/products\/piezo-vibration-sensor-small-horizontal\"\u003eSparkFun Piezo Vibration Sensor Small Horizontal - Flexible Film\u003c\/a\u003e, \u003ca href=\"https:\/\/circuit.rocks\/products\/pololu-3pi-robot-arduino-compatible-atmega328p-with-reflectance-sensors\"\u003ePololu 3pi Robot - ATmega328P, 5 QTR Sensors, 8x2 LCD, Arduino\u003c\/a\u003e.\n \u003c\/p\u003e\n\n \u003ch3\u003eComparison table\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eCompared Product\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eKey Difference\u003c\/th\u003e\n\u003cth\u003eDirect Link\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/piezo-vibration-sensor-small-horizontal\"\u003eSparkFun Piezo Vibration Sensor Small Horizontal - Flexible Film\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003efeedback and detection\u003c\/td\u003e\n\u003ctd\u003eble\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/piezo-vibration-sensor-small-horizontal\"\u003eView product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/pololu-3pi-robot-arduino-compatible-atmega328p-with-reflectance-sensors\"\u003ePololu 3pi Robot - ATmega328P, 5 QTR Sensors, 8x2 LCD, Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003efeedback and detection\u003c\/td\u003e\n\u003ctd\u003ePololu 3pi Robot ATmega328P\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/pololu-3pi-robot-arduino-compatible-atmega328p-with-reflectance-sensors\"\u003eView product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/product-2548\"\u003eOptical Encoder Speed Sensor 2 Channel Module for 2WD Smart Car Tachometer\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003efeedback and detection\u003c\/td\u003e\n\u003ctd\u003e2wd, encoder\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/product-2548\"\u003eView product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct\u003c\/th\u003e\n \u003ctd\u003eLine Tracking Sensor for Arduino\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003ctd\u003eCircuitrocks\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct Type\u003c\/th\u003e\n \u003ctd\u003eSensor\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePrimary SKU\u003c\/th\u003e\n \u003ctd\u003eSEN0017\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eKey Specs\u003c\/th\u003e\n \u003ctd\u003e0°, 50°, 3.3V, 5V, uart, TTL\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct URL\u003c\/th\u003e\n \u003ctd\u003ehttps:\/\/circuit.rocks\/products\/line-tracking-sensor-arduino\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003ePinout \u0026amp; power notes\u003c\/h3\u003e\n \u003cp\u003e\n Check the module voltage and interface before wiring. Most sensor modules need power, ground, and one or more signal pins, with some using analog output and others using digital or I2C.\n \u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e\n 1 × Line Tracking Sensor for Arduino\n \u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan this work with Arduino or similar boards?\u003c\/strong\u003e\n Yes, as long as the voltage, control method, and wiring match your controller and power supply.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eShould I power it directly from a controller pin?\u003c\/strong\u003e\n For small signal-only modules that may be fine, but motors, pumps, solenoids, and relays should use a proper driver or external supply.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs this good for student and prototype builds?\u003c\/strong\u003e\n Yes. It fits well in testing, learning, and proof-of-concept projects when matched with the right support parts.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDo I need to check the interface first?\u003c\/strong\u003e\n Yes. Some sensors use analog output, while others use digital, pulse, or bus interfaces such as I2C.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761472168225,"sku":"SEN0017","price":590.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/line-tracking-sensor-for-arduino-139.jpg?v=1689317293"},{"product_id":"gas-sensor-mq6","title":"DFRobot MQ-6 Propane\/LPG Gas Sensor - SEN0131","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Gas Changes with a Practical Air Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eGas Sensor MQ6 Analog Propane For Arduino\u003c\/strong\u003e is a gas sensor with analog output designed for air-quality projects, leak alerts, and ventilation monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003ePower supply needs:\u003c\/strong\u003e 5V; \u003cstrong\u003eInterface type:\u003c\/strong\u003e Analog; \u003cstrong\u003eSize:\u003c\/strong\u003e 40x20mm.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e High sensitivity to LPG, iso-butane, propane\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast response:\u003c\/strong\u003e Fast response\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Analog\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 40x20mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e 1-Output 2-GND 3-VCC\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGas Sensor MQ6 Analog Propane For Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/hydrogen-gas-analog-sensor-mq8-for-arduino-gravity\"\u003eHydrogen Gas Analog Sensor MQ8 For Arduino Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-sensor-mq4\"\u003eGas Analog CH4 Gas Sensor MQ4 For Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-lpg-butane-propane-methane-alcohol-sensor-analog-mq2-for-arduino-gravity\"\u003eGas LPG Butane Propane Methane Alcohol Sensor Analog MQ2 For Arduino Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for gas leak alarms, indoor air monitors, safety demos, ventilation control, and science projects.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include fresh-air test setup, an enclosure with vents, and a display for local readout, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eGas Sensor MQ6 Analog Propane For Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface type\u003c\/th\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower supply needs\u003c\/th\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e40x20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePin Definition\u003c\/th\u003e\n\u003ctd\u003e 1-Output 2-GND 3-VCC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003egas sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then read the sensor output with an \u003cstrong\u003eanalog-capable input\u003c\/strong\u003e or external ADC. Stable power and a clean ground help reduce noise. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Gas Sensor MQ6 Analog Propane For Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Gas Sensor MQ6 Analog Propane For Arduino measure?\u003c\/strong\u003e\n It is designed to measure gas concentration changes in air.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog sensor?\u003c\/strong\u003e\n This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761473151265,"sku":"SEN0131","price":415.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/gas-sensor-mq6-analog-propane-for-arduino-143.jpg?v=1689317303"},{"product_id":"gas-sensor-mq4","title":"MQ-4 Methane (CH4) Gas Sensor - Analog Module","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Gas Changes with a Practical Air Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eGas Analog CH4 Gas Sensor MQ4 For Arduino\u003c\/strong\u003e is a gas sensor with analog output designed for air-quality projects, leak alerts, and ventilation monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003ePower supply:\u003c\/strong\u003e 5V; \u003cstrong\u003eInterface type:\u003c\/strong\u003e Analog; \u003cstrong\u003eSize:\u003c\/strong\u003e 40x20mm.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh sensitivity to CH4, Natural gas:\u003c\/strong\u003e High sensitivity to CH4, Natural gas\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast response:\u003c\/strong\u003e Fast response\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Analog\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 40x20mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGas Analog CH4 Gas Sensor MQ4 For Arduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-sensor-mq6\"\u003eGas Sensor MQ6 Analog Propane For Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-sensor-mq5\"\u003eGas Sensor MQ5 Analog LPG For Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/hydrogen-gas-analog-sensor-mq8-for-arduino-gravity\"\u003eHydrogen Gas Analog Sensor MQ8 For Arduino Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for gas leak alarms, indoor air monitors, safety demos, ventilation control, and science projects.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include fresh-air test setup, an enclosure with vents, and a display for local readout, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eGas Analog CH4 Gas Sensor MQ4 For Arduino\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface type\u003c\/th\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e40x20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003egas sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then read the sensor output with an \u003cstrong\u003eanalog-capable input\u003c\/strong\u003e or external ADC. Stable power and a clean ground help reduce noise. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Gas Analog CH4 Gas Sensor MQ4 For Arduino\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Gas Analog CH4 Gas Sensor MQ4 For Arduino measure?\u003c\/strong\u003e\n It is designed to measure gas concentration changes in air.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog sensor?\u003c\/strong\u003e\n This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45761474134305,"sku":"AB077","price":99.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/gas-analog-ch4-gas-sensor-mq4-for-arduino-144.jpg?v=1689317307"},{"product_id":"ac-dc-current-sensor-50-a","title":"Current Sensor AC\/DC 50A - Hall-Effect Bidirectional","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Current, Voltage, or Magnetic Fields with Ease\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eCurrent Sensor AC\/DC 50A\u003c\/strong\u003e is a current or power sensor with analog output designed for power monitoring, motor feedback, magnetic detection, and control systems. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eOperating Voltage(analog):\u003c\/strong\u003e 3.3-5V; \u003cstrong\u003ePeak Measuring Voltage:\u003c\/strong\u003e 3000V(AC),500V(DC); \u003cstrong\u003eInterface:\u003c\/strong\u003e Analog.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eArduino interface compatible:\u003c\/strong\u003e Arduino interface compatible\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e 3 μs output rise time in response to step input current\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eExtremely stable output offset voltage:\u003c\/strong\u003e Extremely stable output offset voltage\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3-5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e -50~50A\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 34x34mm\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Sensor AC\/DC 50A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ecurrent or power sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/current-20a-analog-sensor-gravity\"\u003eCurrent 20A Analog Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eelectric current electric potential magnetic sensor module with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, hall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/current-ac-sensor-analog-gravity\"\u003eCurrent AC Sensor Analog Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eelectric current electric potential magnetic sensor module with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, remote probe format\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/dc-current-sensor-ina219-high-side-breakout-26v-3-2a-max\"\u003eDC Current Sensor INA219 High Side Breakout 26V 3.2A Max\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecurrent or power sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eI2C interface, motion sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for current meters, motor drivers, magnetic door sensing, power dashboards, and fault alerts.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include an Arduino or ADC-capable board, jumper wires, and a stable power source, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eCurrent Sensor AC\/DC 50A\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Voltage(analog)\u003c\/th\u003e\n\u003ctd\u003e3.3-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePeak Measuring Voltage\u003c\/th\u003e\n\u003ctd\u003e3000V(AC),500V(DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCurrent Measuring Rang\u003c\/th\u003e\n\u003ctd\u003e-50~50A\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003ctd\u003e34x34mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSensitivity\u003c\/th\u003e\n\u003ctd\u003e40 mV\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eUltra-low power loss\u003c\/th\u003e\n\u003ctd\u003e100 μΩ internal conductor resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-40~150°C\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then read the sensor output with an \u003cstrong\u003eanalog-capable input\u003c\/strong\u003e or external ADC. Stable power and a clean ground help reduce noise.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Current Sensor AC\/DC 50A\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Current Sensor AC\/DC 50A measure?\u003c\/strong\u003e\n It is designed to measure current or power use.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog sensor?\u003c\/strong\u003e\n This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761485046049,"sku":"SEN0098","price":1405.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/current-sensor-ac-dc-50a-149.jpg?v=1689317325"},{"product_id":"3-axis-gyro-l3g4200d","title":"3-Axis Gyro L3G4200D - I2C\/SPI MEMS Gyroscope","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eTrack Motion and Orientation with One Compact Module\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003e3 Axis Gyro L3G4200D\u003c\/strong\u003e is a motion sensor module with spi designed for motion tracking, robot balance, and orientation sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eOutputs:\u003c\/strong\u003e Control relays , servos , and LCD\/OLED displays ..\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensor packs:\u003c\/strong\u003e Sensor packs for light, temperature, distance, motion, and more.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Control relays , servos , and LCD\/OLED displays .\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e If a module is 3.3 V-only, use a logic level converter when connecting to 5 V systems.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e I\/O pins cannot drive motors or high loads directly—use drivers or relay modules .\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3 Axis Gyro L3G4200D\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with SPI\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/imu-10dof-l3g4200d-adxl345-hmc5883l-bmp180\"\u003eIMU 10DOF L3G4200D+ADXL345+HMC5883L+BMP180\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with I2C\u003c\/td\u003e\n\u003ctd\u003eI2C interface, SPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/triple-axis-accelerometer-and-gyro-breakout-mpu-6050\"\u003eTriple Axis Accelerometer \u0026amp; Gyro Breakout MPU-6050\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003eI2C interface, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/triple-axis-accelerometer-bma220\"\u003eTriple Axis Accelerometer BMA220\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003eI2C interface, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for balancing robots, gesture controllers, motion loggers, wearables, and camera rigs.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a display, battery pack, and a solid mounting plate, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003e3 Axis Gyro L3G4200D\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSensor Lab\u003c\/th\u003e\n\u003ctd\u003e3 Axis Gyro L3G4200D + environmental sensors (temp, humidity, distance) + relay module + optional data logging.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLogic \/ operating voltage\u003c\/th\u003e\n\u003ctd\u003eDesigned for low-voltage electronics (typically 3.3 V or 5 V, depending on the specific model).\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eRobotics\u003c\/th\u003e\n\u003ctd\u003e2WD\/4WD robots, sensor-guided platforms, and IMU\/ToF-based balance or navigation experiments.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eBest practices\u003c\/th\u003e\n\u003ctd\u003eDouble-check polarity, avoid overcurrent, and prototype on a breadboard before final mounting.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterfaces\u003c\/th\u003e\n\u003ctd\u003eCommon options include UART, I ²C, SPI, and PWM outputs for driving sensors, displays, and actuators.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003eControl relays , servos , and LCD\/OLED displays .\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMatch voltage levels\u003c\/th\u003e\n\u003ctd\u003eIf a module is 3.3 V-only, use a logic level converter when connecting to 5 V systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMind current limits\u003c\/th\u003e\n\u003ctd\u003eI\/O pins cannot drive motors or high loads directly—use drivers or relay modules .\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eSCK\u003c\/strong\u003e, \u003cstrong\u003eMISO\u003c\/strong\u003e, \u003cstrong\u003eMOSI\u003c\/strong\u003e, and \u003cstrong\u003eCS\u003c\/strong\u003e to your controller. Keep wires short for stable reads. Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × 3 Axis Gyro L3G4200D\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the 3 Axis Gyro L3G4200D measure?\u003c\/strong\u003e\n It is designed to measure motion, tilt, rotation, or orientation.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this SPI sensor?\u003c\/strong\u003e\n This version uses SPI, so you usually connect power plus SCK, MISO, MOSI, and chip select.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Usually yes. Motion sensors often benefit from software calibration to improve offset, drift, and orientation accuracy.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45761489469729,"sku":"AB038","price":59.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/3-axis-gyro-l3g4200d-1_3136761a-a8d2-4992-9cac-3e0b0657e04f.jpg?v=1781005040"},{"product_id":"one-wire-waterproof-temperature-sensor","title":"Waterproof DS18B20 Temperature Sensor 1-Wire 3m Cable","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Temperature with a Sensor Made for Embedded Builds\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eTemperature Waterproof One Wire Sensor DS18B20 3Meters\u003c\/strong\u003e is a temperature sensor with spi designed for temperature logging, thermal control, and equipment monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eOutputs:\u003c\/strong\u003e Control relays , servos , and LCD\/OLED displays ..\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensor packs:\u003c\/strong\u003e Sensor packs for light, temperature, distance, motion, and more.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e Control relays , servos , and LCD\/OLED displays .\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e If a module is 3.3 V-only, use a logic level converter when connecting to 5 V systems.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e I\/O pins cannot drive motors or high loads directly—use drivers or relay modules .\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Waterproof One Wire Sensor DS18B20 3Meters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature sensor with SPI\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-sensor-waterproof-ds18b20-kit\"\u003eTemperature Sensor Waterproof DS18B20 kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature sensor with 1-Wire\u003c\/td\u003e\n\u003ctd\u003ewaterproof build, temperature sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/temperature-sensor-ds18b20-arduino\"\u003eTemperature Sensor DS18B20 Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/ntc-thermistor-temperature-sensor-module-4pin\"\u003eNTC Thermistor Temperature Sensor Module 4pin\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ethermistor temperature sensor with I2C\u003c\/td\u003e\n\u003ctd\u003etemperature sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for thermostats, incubators, battery monitors, weather nodes, and thermal data loggers.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include probe mounts, thermal paste if needed, and a data logger, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eTemperature Waterproof One Wire Sensor DS18B20 3Meters\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSensor Lab\u003c\/th\u003e\n\u003ctd\u003eTemperature Waterproof One Wire Sensor DS18B20 3Meters + environmental sensors (temp, humidity, distance) + relay module + optional data logging.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLogic \/ operating voltage\u003c\/th\u003e\n\u003ctd\u003eDesigned for low-voltage electronics (typically 3.3 V or 5 V, depending on the specific model).\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eRobotics\u003c\/th\u003e\n\u003ctd\u003e2WD\/4WD robots, sensor-guided platforms, and IMU\/ToF-based balance or navigation experiments.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eBest practices\u003c\/th\u003e\n\u003ctd\u003eDouble-check polarity, avoid overcurrent, and prototype on a breadboard before final mounting.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterfaces\u003c\/th\u003e\n\u003ctd\u003eCommon options include UART, I ²C, SPI, and PWM outputs for driving sensors, displays, and actuators.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003eControl relays , servos , and LCD\/OLED displays .\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMatch voltage levels\u003c\/th\u003e\n\u003ctd\u003eIf a module is 3.3 V-only, use a logic level converter when connecting to 5 V systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMind current limits\u003c\/th\u003e\n\u003ctd\u003eI\/O pins cannot drive motors or high loads directly—use drivers or relay modules .\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eSCK\u003c\/strong\u003e, \u003cstrong\u003eMISO\u003c\/strong\u003e, \u003cstrong\u003eMOSI\u003c\/strong\u003e, and \u003cstrong\u003eCS\u003c\/strong\u003e to your controller. Keep wires short for stable reads. Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Temperature Waterproof One Wire Sensor DS18B20 3Meters\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Temperature Waterproof One Wire Sensor DS18B20 3Meters measure?\u003c\/strong\u003e\n It is designed to measure temperature.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this SPI sensor?\u003c\/strong\u003e\n This version uses SPI, so you usually connect power plus SCK, MISO, MOSI, and chip select.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45761491239201,"sku":"AB389","price":105.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/temperature-waterproof-one-wire-sensor-ds18b20-3meters-153.jpg?v=1689317340"},{"product_id":"triple-axis-accelerometer-and-gyro-breakout-mpu-6050","title":"MPU-6050 Triple-Axis Accelerometer + Gyro Breakout","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eTrack Motion and Orientation with One Compact Module\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eTriple Axis Accelerometer \u0026amp; Gyro Breakout MPU-6050\u003c\/strong\u003e is a motion sensor module with digital output designed for motion tracking, robot balance, and orientation sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 3V-5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e I2C.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eDigital-output temperature sensor:\u003c\/strong\u003e Digital-output temperature sensor\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3V-5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 20 * 15 * 1.6mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e I2C\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTriple Axis Accelerometer \u0026amp; Gyro Breakout MPU-6050\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/imu-9dof-mpu-9250\"\u003eIMU 9DOF MPU-9250\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output, motion sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/adxl335-5v-ready-triple-axis-accelerometer-3g-analog-out\"\u003eADXL335 5V ready triple-axis accelerometer +-3g analog out\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/triple-axis-accelerometer-adafruit-2-4-8g-14-bit-mma8451\"\u003eTriple-Axis Accelerometer Adafruit ±2 4 8g @ 14-bit MMA8451\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003emotion sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output, motion sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for balancing robots, gesture controllers, motion loggers, wearables, and camera rigs.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus an \u003ca href=\"\/search?q=I2C+cable\"\u003eI2C cable\u003c\/a\u003e or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include a display, battery pack, and a solid mounting plate, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eTriple Axis Accelerometer \u0026amp; Gyro Breakout MPU-6050\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003e3V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e20 * 15 * 1.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eI2C\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eimu motion sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect \u003cstrong\u003eVCC\u003c\/strong\u003e, \u003cstrong\u003eGND\u003c\/strong\u003e, \u003cstrong\u003eSDA\u003c\/strong\u003e, and \u003cstrong\u003eSCL\u003c\/strong\u003e to your controller. Use the correct board voltage and I2C address in your code. Motion sensors often need calibration in software to get the best accuracy. Mounting angle and vibration can change the result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Triple Axis Accelerometer \u0026amp; Gyro Breakout MPU-6050\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Triple Axis Accelerometer \u0026amp; Gyro Breakout MPU-6050 measure?\u003c\/strong\u003e\n It is designed to measure motion, tilt, rotation, or orientation.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this I2C sensor?\u003c\/strong\u003e\n This version uses I2C, so you usually connect VCC, GND, SDA, and SCL.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\n Usually yes. Motion sensors often benefit from software calibration to improve offset, drift, and orientation accuracy.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45761492943137,"sku":"AB001","price":189.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/triple-axis-accelerometer-and-gyro-breakout-mpu-6050-154.jpg?v=1689317344"},{"product_id":"non-contact-liquid-level-switch","title":"DFRobot Non-Contact Liquid Level Switch - FIT0212","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Nearby Objects Without Contact\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eNon-Contact Liquid Level Switch\u003c\/strong\u003e is a button or switch input module designed for obstacle detection, touchless triggers, object counting, and simple automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003ePower supply:\u003c\/strong\u003e +5V.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e 1~13mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e +5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 25μA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e obstacle detection, touchless triggers, object counting, and simple automation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNon-Contact Liquid Level Switch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ebutton or switch input module\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/float-switch-plastic-water-level-control\"\u003eFloat Switch Plastic Water Level Control\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eliquid level sensor\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/capacitive-proximity-sensor-ljc18a3-h-z-by-2\"\u003eCapacitive Proximity Sensor LJC18A3-H-Z \/ BY\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eproximity presence sensor module with digital output\u003c\/td\u003e\n\u003ctd\u003emodel LJC18A3-H-Z\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/float-switch-plastic-water-level-control-right-angle\"\u003eFloat Switch Plastic Water Level Control Right Angle\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eliquid level sensor\u003c\/td\u003e\n\u003ctd\u003epressure sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for robot obstacle avoidance, touchless dispensers, automatic doors, object counters, parking aids, and level alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eNon-Contact Liquid Level Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDetectable wall thickness\u003c\/th\u003e\n\u003ctd\u003e1~13mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003e+5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking current\u003c\/th\u003e\n\u003ctd\u003e25μA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking temperature\u003c\/th\u003e\n\u003ctd\u003e-25~125℃\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eproximity presence sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eNon-Contact Liquid Level Switch\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Non-Contact Liquid Level Switch\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Non-Contact Liquid Level Switch measure?\u003c\/strong\u003e\n It is designed to measure liquid level or liquid presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45761504051489,"sku":"FIT0212","price":785.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/non-contact-liquid-level-switch-158.jpg?v=1689317362"},{"product_id":"force-sensitive-resistor-0-5","title":"DFRobot Force Sensitive Resistor 0.5\" - SEN0047","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eTurn Force or Level Changes into Readable Data\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eForce Sensitive Resistor 0.5\"\u003c\/strong\u003e is a force density level sensor module designed for level sensing, force feedback, and measurement systems. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eCategory:\u003c\/strong\u003e force density level sensors.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Load cells need a proper amplifier such as an HX711 and solid mechanical mounting. Small twists or uneven force can change the reading.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Low power consumption - FSRs are low-power devices which makes them suitable for battery-powered applications\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e level sensing, force feedback, and measurement systems\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eForce Sensitive Resistor 0.5\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eforce density level sensor module\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/force-sensitive-resistor-fsr-square\"\u003eForce-Sensitive Resistor (FSR) Square\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eforce density level sensor module\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch input, pressure sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/long-flex-bend-sensor\"\u003eFlex\/Bend Long Sensor 4.5\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflex sensor\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flex-bend-short-sensor\"\u003eFlex\/Bend Short Sensor\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflex sensor\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for liquid level alarms, force pads, occupancy sensing, and fill-level checks.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eForce Sensitive Resistor 0.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eforce density level sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eForce Sensitive Resistor 0.5\"\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Load cells need a proper amplifier such as an HX711 and solid mechanical mounting. Small twists or uneven force can change the reading.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Force Sensitive Resistor 0.5\"\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Force Sensitive Resistor 0.5\" measure?\u003c\/strong\u003e\n It is designed to measure force, bend, muscle activity, or weight.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eDo I need extra hardware?\u003c\/strong\u003e\n Often yes. Force and weight sensors are commonly paired with an amplifier or conditioning board before they connect to a microcontroller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45812531101985,"sku":"SEN0047","price":475.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/force-sensitive-resistor-0-5-168.jpg?v=1689656357"},{"product_id":"flexiforce-pressure-sensor-1lb","title":"DFRobot Flexiforce Pressure Sensor 1lb - SEN0068","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Pressure with a Compact Sensor Module\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eFlexiforce Pressure Sensor - 1lb\u003c\/strong\u003e is a flex sensor designed for barometric logging, tank checks, and fluid system monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eSize:\u003c\/strong\u003e 216x14mm.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eDetect contact and\/or touch:\u003c\/strong\u003e Detect contact and\/or touch\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 2.5mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 216x14mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e \u0026lt; 5 ms\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlexiforce Pressure Sensor - 1lb\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eflex sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/flexiforce-pressure-sensor-100lbs\"\u003eFlexiforce Pressure Sensor - 100lbs\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflex sensor\u003c\/td\u003e\n\u003ctd\u003epressure sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-pressure-sensor-analog-gravity\"\u003eWater Pressure Sensor Analog Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eenvironmental sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, pressure sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gas-pressure-sensor-0-40kpa\"\u003eAir Barometric Pressure Sensor Digital 3.3-5V Liquid Water Level Controller\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eliquid level sensor with digital output\u003c\/td\u003e\n\u003ctd\u003edigital output, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for altitude loggers, barometers, pump systems, tank pressure checks, and weather stations.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include tubing, adapters, and a display or logger, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eFlexiforce Pressure Sensor - 1lb\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMax working current\u003c\/th\u003e\n\u003ctd\u003e2.5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e216x14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eResponse time\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003epressure sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eFlexiforce Pressure Sensor - 1lb\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Flexiforce Pressure Sensor - 1lb\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Flexiforce Pressure Sensor - 1lb measure?\u003c\/strong\u003e\n It is designed to measure pressure.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45812531233057,"sku":"SEN0068","price":1445.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/flexiforce-pressure-sensor-1lb-169.jpg?v=1689656360"},{"product_id":"finger-clip-heart-rate-sensor","title":"Finger Clip Heart Rate Sensor - Pulse Sensor Module","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eAdd Health and Biometric Sensing to Your Next Build\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eFinger Clip Heart Rate Sensor\u003c\/strong\u003e is a biometric sensor designed for wearables, pulse demos, biometric logging, and health-focused prototypes. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003ePower Supply:\u003c\/strong\u003e 5V.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e This module is meant for learning, prototyping, and general wellness projects. It is not a medical device and should not be used for diagnosis.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e wearables, pulse demos, biometric logging, and health-focused prototypes\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinger Clip Heart Rate Sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/heart-rate-monitor-sensor-gravity\"\u003eHeart Rate Monitor Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor with UART\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/heart-rate-monitor-sensor-for-arduino-gravity\"\u003eHeart Rate Monitor Sensor For Arduino Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003egeneral-purpose sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/pulse-oximeter-heart-rate-sensor-breakout-max30102\"\u003ePulse Oximeter Heart-Rate Sensor Breakout MAX30102\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ebiometric sensor\u003c\/td\u003e\n\u003ctd\u003einfrared sensing, breakout-board format\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for heart-rate demos, wearable prototypes, pulse logging, finger-clip projects, and education kits.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eFinger Clip Heart Rate Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower Supply\u003c\/th\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003ehealth sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eFinger Clip Heart Rate Sensor\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. This module is meant for learning, prototyping, and general wellness projects. It is not a medical device and should not be used for diagnosis.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Finger Clip Heart Rate Sensor\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Finger Clip Heart Rate Sensor measure?\u003c\/strong\u003e\n It is designed to measure pulse, heart-rate, or ECG-related signals.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45812531331361,"sku":"SOT00100F","price":145.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/finger-clip-heart-rate-sensor-1.png?v=1781002797"},{"product_id":"relay-light-controlled-module","title":"Relay Light Controlled Module","description":"\u003cdiv class=\"product-copy\"\u003e\n\u003cstyle\u003e\n.product-copy{line-height:1.7;color:#1f2937}\n.product-copy \u003e * + *{margin-top:1rem}\n.product-copy h2{margin:1.4em 0 .6em;color:#111827}\n.product-copy h3{margin:1.1em 0 .5em;color:#111827}\n.product-copy p{margin:0 0 1em}\n.product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n.product-copy li{margin:.35em 0}\n.product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n.product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.75em .85em;text-align:left;vertical-align:top;font-size:1rem}\n.product-copy table th{background:#f9fafb;width:32%}\n.faq-list{margin:1.2rem 0 1.4rem}\n.faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n.note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n.mini-note{color:#4b5563;font-size:.96rem}\n\u003c\/style\u003e\n\u003ch2\u003eAutomatic Dusk-to-Dawn Switching Without a Microcontroller\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRelay Light Controlled Module\u003c\/strong\u003e combines a light sensor and a relay on one board, so it can switch a load when the surrounding light level changes. That means you can build simple dusk-to-dawn or light-triggered systems without adding a separate microcontroller.\u003c\/p\u003e\n\u003cp\u003eIt is a useful module for outdoor lights, night indicators, greenhouse controls, and energy-saving projects that need automatic response to ambient light.\u003c\/p\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e The onboard potentiometer lets you adjust sensitivity, so you can tune the trigger point to match the room, enclosure, or outdoor light conditions.\u003c\/div\u003e\n\u003ch3\u003eWhy you'll like it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks on its own:\u003c\/strong\u003e No controller needed for basic light-triggered switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable sensitivity:\u003c\/strong\u003e Tune the light threshold on the board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay output onboard:\u003c\/strong\u003e Easy switching for AC or DC loads within rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast to install:\u003c\/strong\u003e Good for simple automation jobs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood for day\/night projects:\u003c\/strong\u003e Useful in outdoor or window-side builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat you can build\u003c\/h3\u003e\n\u003cp\u003eUse it for dusk-to-dawn lamps, sign lighting, greenhouse shade control, nighttime alarms, and other simple projects that react to ambient light.\u003c\/p\u003e\n\u003ch3\u003eStarter bundles\u003c\/h3\u003e\n\u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus \u003ca href=\"\/search?q=jumper+wires\"\u003ejumper wires\u003c\/a\u003e, a suitable power supply, and a small load for bench testing.\u003c\/p\u003e\n\u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n\u003cp\u003eUseful add-ons include \u003ca href=\"\/search?q=terminal+block\"\u003eterminal block\u003c\/a\u003e, \u003ca href=\"\/search?q=breadboard\"\u003ebreadboard\u003c\/a\u003e, \u003ca href=\"\/search?q=power+supply+module\"\u003epower modules\u003c\/a\u003e, \u003ca href=\"\/search?q=fuse+holder\"\u003efuses\u003c\/a\u003e, and \u003ca href=\"\/search?q=enclosure\"\u003eenclosure\u003c\/a\u003e, especially when you are working with higher voltages or inductive loads.\u003c\/p\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eRelay Light Controlled Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMain sensing element\u003c\/th\u003e\n\u003ctd\u003ePhotoresistor \/ LDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003ctd\u003eTurns relay on or off based on ambient light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRelay load\u003c\/th\u003e\n\u003ctd\u003e10A @ 250VAC or 10A @ 30VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAdjustment\u003c\/th\u003e\n\u003ctd\u003eOnboard potentiometer for sensitivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eController requirement\u003c\/th\u003e\n\u003ctd\u003eNot required for basic operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePinout \u0026amp; power notes\u003c\/h3\u003e\n\u003cp\u003ePower the module from its rated supply, adjust the onboard potentiometer, then wire the target device to the relay output. Test the trigger point under real lighting conditions before final installation.\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cp\u003e1 × Relay Light Controlled Module\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"faq-list\"\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cstrong\u003eDo I need Arduino to use this module?\u003c\/strong\u003e\u003cbr\u003eNo. It can work as a stand-alone light-triggered relay.\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cstrong\u003eCan I adjust when it turns on?\u003c\/strong\u003e\u003cbr\u003eYes. The onboard potentiometer changes the sensitivity threshold.\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cstrong\u003eWhat is a common use for it?\u003c\/strong\u003e\u003cbr\u003eOutdoor lights that turn on when the area gets dark are one of the most common uses.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45812531495201,"sku":"AM190","price":167.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/relay-light-controlled-module-171.jpg?v=1689656370"},{"product_id":"sensors-rain-steam-sensor","title":"Rain Steam Sensor Module - Conductive Detection","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Liquid Flow and Movement in Real Time\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eRain Steam Sensor\u003c\/strong\u003e is a rain sensor with analog and digital output designed for water metering, dosing systems, cooling loops, and liquid monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 3.3V-5V; \u003cstrong\u003eOutput Signal:\u003c\/strong\u003e with over 15mA driving capacity.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Flow readings depend on liquid type, pipe size, and mounting direction. Calibrate in your own system for the best result.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e 5cm x 4cm nickel-plated area\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eController output:\u003c\/strong\u003e with over 15mA driving capacity\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V-5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e water metering, dosing systems, cooling loops, and liquid monitoring\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRain Steam Sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003erain sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/rain-steam-water-sensor-gravity\"\u003eRain Steam Water Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003erain sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, humidity sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-sensor-grove\"\u003eWater Sensor Grove\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eflow fluid sensor module with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eanalog output, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/water-flow-sensor-g1-2\"\u003eWater Hall Flow Sensor G1\/2\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ehall effect flow sensor with UART\u003c\/td\u003e\n\u003ctd\u003eSPI interface, hall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for smart water meters, coolant flow alarms, aquarium systems, beverage dispensers, and irrigation monitors.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include hose fittings, clamps, and a waterproof enclosure, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eRain Steam Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSensor Area\u003c\/th\u003e\n\u003ctd\u003e5cm x 4cm nickel-plated area\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eNickel-Plated Surface\u003c\/th\u003e\n\u003ctd\u003e5cm x 4cm area with anti-oxidation coating for long lifespan.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOn-Board Indicator LED\u003c\/th\u003e\n\u003ctd\u003eProvides real-time status feedback.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eOutput Signal\u003c\/th\u003e\n\u003ctd\u003ewith over 15mA driving capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLM393 Comparator\u003c\/th\u003e\n\u003ctd\u003eSupports wide voltage ranges for versatile applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eEasy Installation\u003c\/th\u003e\n\u003ctd\u003eIncludes bolt holes for quick and secure mounting.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eHigh-Quality Material\u003c\/th\u003e\n\u003ctd\u003eMade from RF-04 double-sided material for durability.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eMany modules in this style expose both \u003cstrong\u003eanalog\u003c\/strong\u003e and \u003cstrong\u003edigital\u003c\/strong\u003e pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available. Flow readings depend on liquid type, pipe size, and mounting direction. Calibrate in your own system for the best result.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Rain Steam Sensor\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Rain Steam Sensor measure?\u003c\/strong\u003e\n It is designed to measure rain or water presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog and digital sensor?\u003c\/strong\u003e\n This module may provide both analog and digital outputs, depending on how you wire and read it.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45812535132449,"sku":"AB112","price":75.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/sensors-rain-steam-sensor-1.jpg?v=1781152577"},{"product_id":"waterproof-integrated-ultrasonic-ranging-module-jsn-b02","title":"JSN-B02 V2.0 Waterproof Ultrasonic Distance Sensor","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Distance with an Ultrasonic Sensor Module\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eUltrasonic Ranging Waterproof Integrated Module JSN B02 V2.0\u003c\/strong\u003e is an ultrasonic distance sensor with trig\/echo designed for distance measurement, obstacle detection, level checks, and basic automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eMeasurement range:\u003c\/strong\u003e 25cm-500cm; \u003cstrong\u003eWorking voltage:\u003c\/strong\u003e DC 5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e UART.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Ultrasonic sensors can struggle with very soft, angled, or very close targets. Keep the face clear and test the mounting angle in the real enclosure.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eLow Voltage, Little Power Use:\u003c\/strong\u003e Low Voltage, Little Power Use\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh Precision:\u003c\/strong\u003e High Precision\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Equipped With A Wire-Enclosed Waterproof Probe, Appropriate For Harsh, Wet Measurement Situations\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 5mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOperating frequency:\u003c\/strong\u003e 40KHz\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSensing range:\u003c\/strong\u003e 25cm-500cm\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUltrasonic Ranging Waterproof Integrated Module JSN B02 V2.0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eultrasonic distance sensor with TRIG\/ECHO\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/waterproof-integrated-ultrasonic-ranging-module\"\u003eWaterproof Ultrasonic Ranging JSN-SR04T 2.0\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eultrasonic distance sensor with TRIG\/ECHO\u003c\/td\u003e\n\u003ctd\u003ewaterproof build, ultrasonic ranging\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/ultrasonic-ranging-sensor-hc-sr04-and-bracket-for-distance-sensors-in\"\u003eUltrasonic Ranging Sensor HC-SR04 and Bracket For Distance Sensors in Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eultrasonic distance sensor with TRIG\/ECHO\u003c\/td\u003e\n\u003ctd\u003eultrasonic ranging\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/dfrobot-ultrasonic-sensor-urm37\"\u003eUltrasonic Ranging Sensor URM37\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eultrasonic distance sensor with UART\u003c\/td\u003e\n\u003ctd\u003eultrasonic ranging\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for robot obstacle avoidance, tank level checks, parking aids, object counters, and range alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include USB-to-serial tools, level-safe controllers, displays, and data loggers, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eUltrasonic Ranging Waterproof Integrated Module JSN B02 V2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eStatic working current\u003c\/th\u003e\n\u003ctd\u003e5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAcoustic Emission Frequency\u003c\/th\u003e\n\u003ctd\u003e40KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMeasurement range\u003c\/th\u003e\n\u003ctd\u003e25cm-500cm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking voltage\u003c\/th\u003e\n\u003ctd\u003eDC 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Current\u003c\/th\u003e\n\u003ctd\u003e30mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCable\u003c\/th\u003e\n\u003ctd\u003e2.5m\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWiring\u003c\/th\u003e\n\u003ctd\u003e+5V(positive), Trig(control), Echo(receive), GND(cathode)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eUART\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eTX\u003c\/strong\u003e and \u003cstrong\u003eRX\u003c\/strong\u003e to a serial-capable controller at the correct logic level and baud rate. Ultrasonic sensors can struggle with very soft, angled, or very close targets. Keep the face clear and test the mounting angle in the real enclosure.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2.0 measure?\u003c\/strong\u003e\n It is designed to measure distance or object presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this UART sensor?\u003c\/strong\u003e\n This version uses UART or serial output, so you connect power plus TX and RX at the correct logic level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45812536803617,"sku":"AC048","price":135.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/waterproof-integrated-ultrasonic-ranging-module-jsn-b02-white.jpg?v=1778911771"},{"product_id":"sound-sensor","title":"Sound Sensor LM386","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Sound and Vibration for Smarter Projects\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eSound Sensor LM386\u003c\/strong\u003e is a sound sensor with analog and digital output designed for sound detection, vibration alerts, and machine monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eVoltage:\u003c\/strong\u003e 4 to 12V.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAdjustable Threshold:\u003c\/strong\u003e Adjustable Threshold\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 4 to 12V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 4 mA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e 0.2% (AV = 20, VS = 6 V, RL = 8 Ω, PO = 125 mW, f = 1 kHz)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Sensor LM386\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esound sensor with analog and digital output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sound-sensor-analog\"\u003eSound Sensor Analog\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esound sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/electret-microphone-amplifier-max9814-with-auto-gain-control\"\u003eElectret Microphone Amplifier - MAX9814 with Auto Gain Control\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003epH sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sound-level-analog-meter-gravity\"\u003eSound Level Analog Meter Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esound sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for clap switches, knock locks, vibration alarms, sound level demos, and machine monitoring.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eSound Sensor LM386\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMusical Instruments\u003c\/th\u003e\n\u003ctd\u003eIntegrate the sound sensor into a homemade musical instrument that responds to sound in real-time. This can lead to innovative musical expressions and interactive performances.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eAnalog Output\u003c\/th\u003e\n\u003ctd\u003eThe Circuitrocks sound sensor provides an analog output, allowing you to monitor varying sound levels. This feature is crucial for projects that require precise sound measurement.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e4 to 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLow Quiescent Current Drain\u003c\/th\u003e\n\u003ctd\u003e4 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eLow Distortion\u003c\/th\u003e\n\u003ctd\u003e0.2% (AV = 20, VS = 6 V, RL = 8 Ω, PO = 125 mW, f = 1 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eHome Automation\u003c\/th\u003e\n\u003ctd\u003eImplement the sound sensor in a smart home project where it can trigger devices based on sound input, like activating a fan when noise levels exceed a certain threshold.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eacoustic sound vibration sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eMany modules in this style expose both \u003cstrong\u003eanalog\u003c\/strong\u003e and \u003cstrong\u003edigital\u003c\/strong\u003e pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Sound Sensor LM386\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Sound Sensor LM386 measure?\u003c\/strong\u003e\n It is designed to measure sound level, audio activity, or optical fingerprint data.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog and digital sensor?\u003c\/strong\u003e\n This module may provide both analog and digital outputs, depending on how you wire and read it.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circuitrocks","offers":[{"title":"Default Title","offer_id":45812538310945,"sku":"2459","price":59.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/sound-sensor-lm386-arduino-compatible-187.jpg?v=1689656438"},{"product_id":"fingerprint-sensor","title":"R503 Round Fingerprint w\/ 2-Color Ring LED 3.3V","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eR503 New Circular Round Two-Color Ring Indicator LED Control DC3.3V MX1.0-6pin Capacitive Fingerprint Module Sensor Scanner\u003c\/strong\u003e is a light sensor designed for light logging, auto-brightness control, and optical sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eCategory:\u003c\/strong\u003e optical light imaging photon sensors.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e Integrated image collecting and algorithm chip together, ALL-in-One\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e light logging, optical switching, line tracking, and brightness-aware projects\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eR503 New Circular Round Two-Color Ring Indicator LED Control DC3.3V MX1.0-6pin Capacitive Fingerprint Module Sensor Scanner\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/fingerprint-sensor-gt-nucl1633\"\u003eFingerprint Sensor (GT-NUCL1633)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eoptical light imaging photon sensor module\u003c\/td\u003e\n\u003ctd\u003ecapacitive touch input, motion sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/fingerprint-sensor-as608-optical-jm-101b-for-raspberry-pi-and-arduino\"\u003eFingerprint Sensor AS608 Optical JM-101B For Raspberry Pi And Arduino Compatible\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eoptical light imaging photon sensor module\u003c\/td\u003e\n\u003ctd\u003emodel AS608\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/color-recognition-sensor-tcs3200-module-for-arduino-2\"\u003eColor Recognition Sensor TCS3200 Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor\u003c\/td\u003e\n\u003ctd\u003emodel TCS3200\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for light meters, line followers, UV monitors, auto-brightness systems, and optical experiments.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eR503 New Circular Round Two-Color Ring Indicator LED Control DC3.3V MX1.0-6pin Capacitive Fingerprint Module Sensor Scanner\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eThe main application areas\u003c\/th\u003e\n\u003ctd\u003ecan be embedded into a variety of end products, such as access control, attendance, safety deposit box\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eoptical light imaging photon sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eR503 New Circular Round Two-Color Ring Indicator LED Control DC3.3V MX1.0-6pin Capacitive Fingerprint Module Sensor Scanner\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × R503 New Circular Round Two-Color Ring Indicator LED Control DC3.3V MX1.0-6pin Capacitive Fingerprint Module Sensor Scanner\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the R503 New Circular Round Two-Color Ring Indicator LED Control DC3.3V MX1.0-6pin Capacitive Fingerprint Module Sensor Scanner measure?\u003c\/strong\u003e\n It is designed to measure light, color, or optical changes.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45812538540321,"sku":"AB727","price":965.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/r503-new-circular-round-two-color-ring-indicator-led-control-dc3-3v-mx1-0-6pin-capacitive-fingerprint-module-sensor-scanner-188.jpg?v=1689656443"},{"product_id":"led-voltage-meter","title":"DFRobot LED Voltage Meter Red - DFR0130-R","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Current, Voltage, or Magnetic Fields with Ease\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eLED Voltage Meter Red\u003c\/strong\u003e is an electric current electric potential magnetic sensor module designed for power monitoring, motor feedback, magnetic detection, and control systems. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eMeasure Voltage:\u003c\/strong\u003e 3.0-30V DC.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.0-30V DC\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e 2 Hz\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e power monitoring, motor feedback, magnetic detection, and control systems\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLED Voltage Meter Red\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eelectric current electric potential magnetic sensor module\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/current-20a-analog-sensor-gravity\"\u003eCurrent 20A Analog Sensor Gravity\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eelectric current electric potential magnetic sensor module with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, hall-effect detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/voltage-current-sensor-max471-load-detection\"\u003eVoltage Current Sensor MAX471 Load Detection\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecurrent or power sensor\u003c\/td\u003e\n\u003ctd\u003emotion sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/wattmeter-i2c-digital-gravity-for-arduino\"\u003eWattmeter I2C Digital Gravity for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ecurrent or power sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eI2C interface, digital output\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for current meters, motor drivers, magnetic door sensing, power dashboards, and fault alerts.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eLED Voltage Meter Red\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMeasure Voltage\u003c\/th\u003e\n\u003ctd\u003e3.0-30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eRefresh Rate\u003c\/th\u003e\n\u003ctd\u003e2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eelectric current electric potential magnetic sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eCheck the pin labels on the \u003cstrong\u003eLED Voltage Meter Red\u003c\/strong\u003e and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × LED Voltage Meter Red\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the LED Voltage Meter Red measure?\u003c\/strong\u003e\n It is designed to measure voltage level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45812538704161,"sku":"DFR0130-R","price":385.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/led-voltage-meter-red-189.jpg?v=1689656447"},{"product_id":"color-sensor","title":"TCS3200 Color Sensor Module - Photo-Frequency Output","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eMeasure Light and Optical Changes with a Compact Sensor\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eColor Sensor TCS3200\u003c\/strong\u003e is a light sensor with uart designed for light logging, auto-brightness control, and optical sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 2.7V to 5.5V; \u003cstrong\u003eInterface:\u003c\/strong\u003e Digital TTL; \u003cstrong\u003eSize:\u003c\/strong\u003e 28.4 x 28.4mm.\u003c\/p\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eKey feature:\u003c\/strong\u003e High-Resolution Conversion of Light Intensity to Frequency\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Digital TTL\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 2.7V to 5.5V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 28.4 x 28.4mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor Sensor TCS3200\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor with UART\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/color-recognition-sensor-tcs3200-module-for-arduino-2\"\u003eColor Recognition Sensor TCS3200 Module for Arduino\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elight sensor\u003c\/td\u003e\n\u003ctd\u003emodel TCS3200\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/color-rgb-sensor-with-ir-filter-and-white-led-tcs34725\"\u003eColor RGB Sensor with IR filter and White LED TCS34725\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared proximity sensor with digital output\u003c\/td\u003e\n\u003ctd\u003emodel TCS34725\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/gesture-and-rgb-sensor\"\u003eGesture and RGB Sensor APDS 9960\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egesture sensor\u003c\/td\u003e\n\u003ctd\u003edigital output, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for light meters, line followers, UV monitors, auto-brightness systems, and optical experiments.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard or jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include USB-to-serial tools, level-safe controllers, displays, and data loggers, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eColor Sensor TCS3200\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eDigital TTL\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWorking Voltage\u003c\/th\u003e\n\u003ctd\u003e2.7V to 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e28.4 x 28.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eoptical light imaging photon sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then wire \u003cstrong\u003eTX\u003c\/strong\u003e and \u003cstrong\u003eRX\u003c\/strong\u003e to a serial-capable controller at the correct logic level and baud rate.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Color Sensor TCS3200\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Color Sensor TCS3200 measure?\u003c\/strong\u003e\n It is designed to measure light, color, or optical changes.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this UART sensor?\u003c\/strong\u003e\n This version uses UART or serial output, so you connect power plus TX and RX at the correct logic level.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":45812538966305,"sku":"AB120","price":387.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/color-sensor-tcs3200-190.jpg?v=1689656452"},{"product_id":"distance-sensor-100-550-cm-sharp-ir-gp2y0a710k","title":"Sharp GP2Y0A710K IR Distance Sensor 100-550cm Long","description":"\u003cdiv class=\"product-copy\"\u003e\n \u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\n \u003ch2\u003eDetect Nearby Objects Without Contact\u003c\/h2\u003e\n\n \u003cp\u003eThe \u003cstrong\u003eDistance Sensor 100-550cm GP2Y0A710K Sharp\u003c\/strong\u003e is an infrared distance sensor with analog output designed for distance measurement, obstacle detection, level checks, and basic automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.\u003c\/p\u003e\n\n \u003cp\u003eKey details include \u003cstrong\u003eInterface:\u003c\/strong\u003e Analog.\u003c\/p\u003e\n\n \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/div\u003e\n\n \u003ch3\u003eWhy you’ll love it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 58mm x 17.6mm x 22.5mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e 11g with cable\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy wiring:\u003c\/strong\u003e Analog\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaker-friendly build:\u003c\/strong\u003e Easy to use in prototypes, classroom projects, and custom electronics\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon controller support:\u003c\/strong\u003e Works well with Arduino, ESP32, Raspberry Pi, and similar boards\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProject-ready sensing:\u003c\/strong\u003e obstacle detection, touchless triggers, object counting, and simple automation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eCompare with similar products\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eSensor style\u003c\/th\u003e\n\u003cth\u003eStandout\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDistance Sensor 100-550cm GP2Y0A710K Sharp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared distance sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eCurrent item\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/pololu-carrier-with-sharp-gp2y0a60szlf-analog-distance-sensor-10-150cm-5v\"\u003eDistance Sensor 10-150cm GP2Y0A60SZLF Sharp 5V\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared distance sensor with analog output\u003c\/td\u003e\n\u003ctd\u003emodel GP2Y0A60SZLF\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sharp-gp2y0a41sk0f-analog-distance-sensor-4-30cm\"\u003eSharp GP2Y0A41SK0F Analog Distance Sensor 4-30cm\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared distance sensor with analog output\u003c\/td\u003e\n\u003ctd\u003eanalog output, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/distance-sensor-10-80cm-gp2y0a21yk0f-sharp\"\u003eDistance Sensor 10-80cm GP2Y0A21YK0F Sharp\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003einfrared distance sensor with digital output\u003c\/td\u003e\n\u003ctd\u003eadjustable sensing range, infrared sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for robot obstacle avoidance, tank level checks, parking aids, object counters, and range alarms.\u003c\/p\u003e\n\n \u003ch3\u003eStarter bundles\u003c\/h3\u003e\n \u003cp\u003ePair it with an \u003ca href=\"\/search?q=arduino\"\u003eArduino-compatible board\u003c\/a\u003e, \u003ca href=\"\/search?q=esp32\"\u003eESP32\u003c\/a\u003e, or \u003ca href=\"\/search?q=raspberry+pi\"\u003eRaspberry Pi\u003c\/a\u003e, plus a breadboard and jumper wires for quick setup and testing.\u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003eUseful add-ons include an Arduino or ADC-capable board, jumper wires, and a stable power source, depending on how you plan to power, mount, and log the sensor.\u003c\/p\u003e\n\n \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n \u003ctable\u003e\n \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eDistance Sensor 100-550cm GP2Y0A710K Sharp\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e58mm x 17.6mm x 22.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e11g with cable\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eproximity presence sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n\n \u003ch3\u003eWiring \u0026amp; usage notes\u003c\/h3\u003e\n \u003cp\u003eConnect power and ground, then read the sensor output with an \u003cstrong\u003eanalog-capable input\u003c\/strong\u003e or external ADC. Stable power and a clean ground help reduce noise. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.\u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e1 × Distance Sensor 100-550cm GP2Y0A710K Sharp\u003c\/p\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdiv class=\"faq-list\"\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat does the Distance Sensor 100-550cm GP2Y0A710K Sharp measure?\u003c\/strong\u003e\n It is designed to measure distance or object presence.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eCan I use it with Arduino, ESP32, or Raspberry Pi?\u003c\/strong\u003e\n Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eHow do I connect this Analog sensor?\u003c\/strong\u003e\n This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eWhat affects accuracy?\u003c\/strong\u003e\n Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.\n \u003c\/div\u003e\n \u003cdiv class=\"faq\"\u003e\n \u003cstrong\u003eIs it good for prototyping?\u003c\/strong\u003e\n Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sharp","offers":[{"title":"Default Title","offer_id":45812540047649,"sku":"SEN0085","price":1599.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/distance-sensor-100-550cm-gp2y0a710k-sharp-192.jpg?v=1689656462"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/collections\/Sensor_170f9f88-1fcd-489a-bc78-8fd7c4cec1e1.png?v=1776329555","url":"https:\/\/circuit.rocks\/collections\/sensors.oembed?page=24","provider":"circuitrocks","version":"1.0","type":"link"}