{"product_id":"cjmcu-103-rotary-angle-sensor-module-300-analog-potentiometer","title":"CJMCU-103 Rotary Angle Sensor Module – 300° Analog Potentiometer","description":"\u003ch1\u003eCJMCU-103 Rotary Angle Sensor Module – 300° Analog Potentiometer\u003c\/h1\u003e\n\n\u003cp\u003eThe CJMCU-103 Rotary Angle Sensor Module is a precision potentiometer-based sensor that outputs an analog voltage proportional to the angular position of its shaft. Ideal for applications requiring continuous rotation feedback, such as robotic joints, servo position sensing, and interactive controls. It offers a straightforward way to integrate angle measurement into your microcontroller projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Voltage (0V to VCC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0° – 300° (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePotentiometer Resistance\u003c\/td\u003e\n\u003ctd\u003e10 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLinearity\u003c\/td\u003e\n\u003ctd\u003e±0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20mm x 18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eServo motor position feedback for precise control\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/raspberry-pi-5-ai-robot-arm-kit-with-ewc-for-education-analytics\"\u003eRobot arm joint angle sensing\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eDIY volume control knob for amplifiers\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/diy-wind-direction-indicator-kit-arduino-uno-and-reed-switches\"\u003eWind direction indicator for weather stations\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eAnalog input demo for Arduino beginners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis module works with any development board that has an analog input, including Arduino Uno, Mega, Nano, ESP32, ESP8266, and Raspberry Pi (with an external ADC). It operates at both 3.3V and 5V logic levels, providing an output voltage range from 0V up to the supply voltage. Commonly paired with Arduino for simple analog reading using the analogRead() function.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the VCC pin to a 3.3V or 5V power output, GND to ground, and the OUT pin to any analog input pin on your microcontroller. No additional components are required. To minimize noise, keep the signal wire away from high-current lines or use a small capacitor (e.g., 100nF) between OUT and GND.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the module outputs an analog voltage that can be read directly by any Arduino board's analog input pins. Just connect VCC to 5V, GND to GND, and OUT to A0, then use analogRead() to read the angle.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the measurement range of this sensor?\u003c\/summary\u003e\u003cp\u003eThe CJMCU-103 provides an angular measurement range of approximately 0° to 300°. The output voltage is linearly proportional to the angle within this range.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it include an attachment knob?\u003c\/summary\u003e\u003cp\u003eThe module includes a small shaft but no knob. You can easily attach any standard potentiometer knob with a 6mm shaft diameter.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445004198253,"sku":"CDN-0643","price":120.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_8c349e86-443b-4f74-a216-fb4b88bfd85f.jpg?v=1781512757","url":"https:\/\/compoden.com\/products\/cjmcu-103-rotary-angle-sensor-module-300-analog-potentiometer","provider":"Compoden","version":"1.0","type":"link"}