Even though you add encoders on the wheels it’s still an open loop locomotion method, you need the room to have a feedback of the position on the plane/in the space

I think you should use turrets, the board has mounting holes for a reason

Probably IMUs.. don’t know why

So.. various things:

-an LED clock -dsp learning with a Nicla Vision (i want to learn how to implement digital filters and use them on the signal sampled from the on-board mic) -a custom keypad for special characters -a tool to use at work to check encoders signals