Motoron M2T256 I2C motor driver

Robotics and electronics discussion Electronics
1

Hello,
I am using Motoron M2T256 (Pololu - Motoron M2T256 Dual I²C Motor Controller (Header Pins Soldered)) motor driver to control a 12 Volt brushed DC motor (max current rating of 1.5 A) using Arduino Nano 33 BLE. I am using the arduino’s 3.3 V pin to power the logic circuit of the driver. However, the 3.3V pin can only provide 50mA current at maximum and some of it will also be consumed by the microcontroller it self.

So, I am interested to know the current requirements of the driver’s logic circuit? Is it safe to use the arduino’s 3.3 V pin to power the logic circuit or I step down the main power supply to 3.3 volt?

Thank you,
Ahmed

2

Hello, Ahmed.

The Motoron M2T256 controller’s logic circuit current draw should only be on the order of a few mA (maybe a few 10s of mA), so I expect it to be fine to power with your Arduino’s 3.3V output.

- Patrick

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