{"product_id":"servo-fs90r-micro-continuous-rotation","title":"Pololu FS90R Micro Continuous Rotation Servo - 2820","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\u003eContinuous Rotation Drive for Compact Robots and Motion Projects\u003c\/h2\u003e\n\n \u003cp\u003e\n The \u003cstrong\u003eServo FS90R Micro Continuous Rotation\u003c\/strong\u003e is a practical \u003cstrong\u003econtinuous rotation servo\u003c\/strong\u003e from \u003cstrong\u003eCircuitrocks\u003c\/strong\u003e for students, makers, and repair-friendly builds. It fits well in projects that need simple drive motion, 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\u003eContinuous rotation, Compact size\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\u003eContinuous rotation:\u003c\/strong\u003e useful for drive systems, rollers, and simple motion tasks\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e easier to fit into small enclosures, lightweight robots, and tight layouts\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSimple speed and direction control:\u003c\/strong\u003e adds useful value when choosing parts for a build\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGood for compact drive tasks:\u003c\/strong\u003e adds useful value when choosing parts for a build\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEasy to integrate into small robots:\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 drive wheels, feeders, rollers, and compact motion builds that need simple continuous rotation. 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 A simple setup includes an Arduino-compatible board, a stable 5V supply, jumper wires, and a servo tester or PWM-capable controller.\n \u003c\/p\u003e\n\n \u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n \u003cp\u003e\n Useful add-ons include wheels, brackets, external power, and simple PWM control hardware. You can also compare it with \u003ca href=\"https:\/\/circuit.rocks\/products\/servo-df15rsmg-360-degree-motor-20kg\"\u003eDFRobot DF15RSMG 360° Continuous Rotation Servo 20kg\u003c\/a\u003e, \u003ca href=\"https:\/\/circuit.rocks\/products\/servo-motor-ds04-nfc-360-degree-continuous-rotation\"\u003eServo Motor DS04-NFC 360-Degree Continuous Rotation\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\/servo-df15rsmg-360-degree-motor-20kg\"\u003eDFRobot DF15RSMG 360° Continuous Rotation Servo 20kg\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esimple drive motion\u003c\/td\u003e\n\u003ctd\u003e20kg, continuous rotation\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/servo-df15rsmg-360-degree-motor-20kg\"\u003eView product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/servo-motor-ds04-nfc-360-degree-continuous-rotation\"\u003eServo Motor DS04-NFC 360-Degree Continuous Rotation\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003esimple drive motion\u003c\/td\u003e\n\u003ctd\u003eNFC, continuous rotation\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/servo-motor-ds04-nfc-360-degree-continuous-rotation\"\u003eView product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/servo-9g-metal-gear-micro-1-8kg\"\u003eServo 9g Metal Gear Micro 1.8Kg\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003elightweight RC and small robotics\u003c\/td\u003e\n\u003ctd\u003e9g, 1.8Kg, metal gear, micro\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/circuit.rocks\/products\/servo-9g-metal-gear-micro-1-8kg\"\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\u003eServo FS90R Micro Continuous Rotation\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\u003eContinuous Rotation Servo\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePrimary SKU\u003c\/th\u003e\n \u003ctd\u003ePOL2820\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eKey Specs\u003c\/th\u003e\n \u003ctd\u003e6 V, 130 RPM, 21 oz-in, 1.5 kg-cm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct URL\u003c\/th\u003e\n \u003ctd\u003ehttps:\/\/circuit.rocks\/products\/servo-fs90r-micro-continuous-rotation\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 Continuous-rotation servos use the same three-wire hookup as standard servos, but the signal controls speed and direction rather than a fixed angle.\n \u003c\/p\u003e\n\n \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n \u003cp\u003e\n 1 × Servo FS90R Micro Continuous Rotation\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\u003eDoes this move to a fixed angle?\u003c\/strong\u003e\n No. Continuous-rotation servos spin like a geared drive unit, so the control signal changes speed and direction instead of angle.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":45813987541281,"sku":"POL2820","price":595.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/servo-fs90r-micro-continuous-rotation-1268.jpg?v=1689673549","url":"https:\/\/circuit.rocks\/products\/servo-fs90r-micro-continuous-rotation","provider":"circuitrocks","version":"1.0","type":"link"}