control the motor rotation and listen on the ‘stepper motor driver’ interface pins hooked up to the motion controller upstream. The Arduino source for this can be found on the project GitHub.

There are a lot of fun projects you can do with stepper motors salvaged from ... he connects an LED across two random pins and spins the motor. If the LED lights, you’ve found a coil.

and since it’s I2C you can also connect any other I2C devices or HATs to the same pins. In fact, you can even stack multiple Motor HATs, up to 32 of them, for controlling up to 64 stepper motors ...

50V/3.0A constant current stepper motor driver IC Credit: Toshiba Electronics Europe Housed ... The TB67S559FTG represents a significant voltage and current rating upgrade to its pin/function ...