{"title":"N20 DC Motor with Magnetic Encoder - 6V with 1:50 Gear Ratio","handle":"n20-dc-motor-with-magnetic-encoder-6v-with-1-50-gear-ratio","url":"/products/n20-dc-motor-with-magnetic-encoder-6v-with-1-50-gear-ratio","description":"This N20 micro geared DC motor includes a built-in magnetic encoder wheel and two Hall effect sensors, providing speed and direction feedback without additional wiring. The compact N20 form factor makes it well suited for small robotics projects requiring precise motor control.\n\nThe motor runs on 4.5–6 V DC (6 V nominal) via the white and red wires, which connect to an H-bridge motor driver for PWM speed and direction control. The encoder outputs on the yellow and green wires provide 14 counts per revolution (before gear ratio), allowing your microcontroller to calculate speed and direction via interrupts.\n\nKey Features\n\n\nBuilt-In Magnetic Encoder – Magnetic wheel and two Hall effect sensors pre-attached\n\nSpeed and Direction Sensing – Dual encoder outputs for quadrature decoding\n\n1:50 Gear Ratio – High torque at reduced speed\n\nN20 Form Factor – Compact standard size for small robots\n\n14 Counts Per Revolution – Before gear ratio multiplication\n\n\nSpecifications\n\n\nMotor Voltage – 4.5–6 V DC (6 V nominal)\n\nGear Ratio – 1:50\n\nNo-Load Current – ~100 mA\n\nStall Current – ~200 mA\n\nEncoder Resolution – 14 counts per revolution\n\nEncoder Power – 3–5 V DC (match your microcontroller logic level)\n\n\nWiring\n\n\nWhite + Red – Motor power (connect to H-bridge driver)\n\nBlue – Encoder ground\n\nBlack – Encoder power (3–5 V DC)\n\nYellow + Green – Hall effect encoder outputs\n\n\n\nNote: Wire colours may differ from standard conventions — check the markings on the motor.\n\n\nPackage Contents\n\n1× N20 DC motor with magnetic encoder (1:50 gear ratio)\n\n\nResources\n\nArduino Encoder Motor RPM Example (GitHub)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2783,"title":"Default Title","sku":"AF-4638","price":26.19,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}