N20 DC Motor with Magnetic Encoder - 6V with 1:298 Gear Ratio

Kick - start your robotics project by getting a motor up and running. You'll soon find that even motors with the same part number can have different speeds due to voltage, environment, and manufacturing variations. That's when you need to figure out the motor's speed. Adding an encoder wheel and an optical or magnetic counter is a great start. As the motor rotates, the encoder wheel spins, and the counter detects each spoke, allowing your microcontroller to count and measure the speed. Want to take it a step further? Add a second counter to determine both speed and direction! This motor is a gem as it already has a magnetic wheel and two hall effect sensors attached. It's a breeze to use and comes in the standard N20 size, a compact option. Power it with 4.5 to 6V DC (nominal) using the white and red wires, which connect to your motor driver. You can use PWM via an H - bridge to adjust speed and direction. Connect the black wire to your microcontroller's ground pin and the blue wire to 3 - 5V DC (either voltage works). Then read the hall effect outputs on the yellow and green wires. We've got an Arduino example sketch that can be adapted to other languages. Simply interrupt on one of the encoder pins, count the time since the last interrupt, and multiply by 14 - counts - per - revolution and the gear ratio. This DC motor has a 1:298 gear ratio, runs on 6V nominal power, and draws about 100 mA (200 mA when stalled). The gear ratio affects torque and RPM but not the current draw. Check out the no - load/rated/stall current, RPM, and torque for different ratios below!

Using this motor is easy. First, power it by connecting the white and red wires to your motor driver and supply 4.5 to 6V DC. You can adjust the speed and direction using an H - bridge with PWM. Then, connect the black wire to your microcontroller's ground pin and the blue wire to 3 - 5V DC (use the voltage your microcontroller uses). Read the hall effect outputs on the yellow and green wires. We've provided an Arduino example that can be changed for other languages. When using it, make sure to supply the right voltage. Don't exceed the maximum current, especially when the motor is stalled. To keep it in good shape, avoid using it in extremely hot or cold environments. Regularly check the connections to make sure they're secure. If you're not using it for a long time, store it in a dry place.