{"product_id":"ccs811-si7021-bmp280-carbon-monoxide-temperature-and-humidity-sensor","title":"CCS811+SI7021+BMP280 - CO + Temp + Humid + Pressure","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\u003eCCS811 SI7021 BMP280 Carbon Monoxide Temperature and Humidity Sensor\u003c\/strong\u003e is a temperature and humidity sensor with i2c designed for climate logging, weather nodes, and room 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; \u003cstrong\u003eInterface:\u003c\/strong\u003e I2C; \u003cstrong\u003eRelative humidity accuracy:\u003c\/strong\u003e + 2% (typical).\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\u003eExcellent stability under high humidity:\u003c\/strong\u003e Excellent stability under high humidity\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 100nA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eExpected accuracy:\u003c\/strong\u003e + 2% (typical)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 15x21mm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUseful spec:\u003c\/strong\u003e electronic components\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\u003eCCS811 SI7021 BMP280 Carbon Monoxide Temperature and Humidity Sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003etemperature and humidity 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\/adafruit-bme680-temperature-humidity-pressure-and-gas-sensor-stemma-qt\"\u003eAdafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eenvironmental sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eSTEMMA QT connector, Qwiic connector\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/air-quality-sensor-breakout-voc-and-eco2-ccs811\"\u003eAir Quality Sensor Breakout VOC and eCO2 CCS811\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003egas sensor with I2C\u003c\/td\u003e\n\u003ctd\u003eI2C interface, gas detection\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/carbon-monoxide-analog-sensor-mq7-for-arduino-gravity\"\u003eCarbon Monoxide Analog Sensor MQ7 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 \u003c\/table\u003e\n\n \u003ch3\u003eWhat you can build\u003c\/h3\u003e\n \u003cp\u003eThis sensor is a good fit for weather stations, room monitors, greenhouses, incubators, and climate 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 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 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\u003eCCS811 SI7021 BMP280 Carbon Monoxide Temperature and Humidity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSleep mode current\u003c\/th\u003e\n\u003ctd\u003e100nA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eRelative humidity accuracy\u003c\/th\u003e\n\u003ctd\u003e+ 2% (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eTemperature accuracy\u003c\/th\u003e\n\u003ctd\u003e+ 0.2 C (typical value)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e15x21mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eelectronic components\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 \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. 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 × CCS811 SI7021 BMP280 Carbon Monoxide Temperature and Humidity 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 CCS811 SI7021 BMP280 Carbon Monoxide Temperature and Humidity Sensor measure?\u003c\/strong\u003e\n It is designed to measure temperature and 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 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 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":45836630393121,"sku":"AB650","price":1299.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/ccs811-si7021-bmp280-carbon-monoxide-temperature-and-humidity-sensor-hires.jpg?v=1778921317","url":"https:\/\/circuit.rocks\/products\/ccs811-si7021-bmp280-carbon-monoxide-temperature-and-humidity-sensor","provider":"circuitrocks","version":"1.0","type":"link"}