{"title":"Geared DC Motor with Magnetic Encoder Outputs - 7 VDC 1:20 Ratio","handle":"geared-dc-motor-with-magnetic-encoder-outputs-7-vdc-1-20-ratio","url":"/products/geared-dc-motor-with-magnetic-encoder-outputs-7-vdc-1-20-ratio","description":"This geared DC motor comes with a built-in magnetic encoder — a magnetic wheel and two Hall effect sensors are already attached to the motor body, giving you quadrature feedback for both speed and direction without any extra wiring or mounting. It's the ideal starting point for closed-loop motor control in robotics projects.\n\nDrive it at 7VDC via your motor driver, use PWM for speed and an H-bridge for direction control, and read encoder feedback directly into your microcontroller's interrupt pins to track RPM and rotation direction.\n\nSpecifications\n\n\nSupply Voltage – 7VDC nominal (motor)\n\nGear Ratio – 1:20\n\nEncoder Type – Magnetic (quadrature), 2× Hall effect sensors\n\nEncoder Resolution – 12 counts per motor revolution\n\nEncoder Supply – 3–5VDC\n\n\nWiring\n\n\nBrown + Yellow – Motor leads (connect to motor driver; PWM-able)\n\nBlack – Encoder GND (connect to microcontroller ground)\n\nRed – Encoder power (3–5VDC)\n\nWhite + Green – Hall effect encoder outputs (connect to interrupt pins)\n\n\nIdeal For\n\nRobotics projects requiring closed-loop speed and direction control\nWheel odometry for differential drive robots\nArduino and microcontroller motor control experiments\n\n\nResources\n\nArduino Encoder RPM Example Sketch (GitHub)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":4588,"title":"Default Title","sku":"AF-4416","price":26.33,"on_sale":false,"in_stock":true,"available_quantity":40,"option1":"Default Title"}]}