Yeah as you can see in my 3D model I'm using a Waveshare stepper motor HAT, using the driver I wrote. The hardware pinouts are compatible with the Raspberry Pi 40-pin header, even though addressing the GPIOs are different (different numbering scheme).

So far the only GPIOs I've used are the ones used by the Waveshare HAT for the two motors, in digital output mode.

On the Rock Pi (which also has a compatible 40-pin header, but also with different numbering scheme), I had to disable an i2s kernel module, because it was conflicting with the GPIO. I've had no such problems on my ODroid N2+ though.

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