Excellent solution, just be sure to check that the current limits of the converter aren’t reached when you’re using it between the two devices. It shouldn’t even come close, but it’s worth a quick look at either way.
Recently used this Stepper Driver with a number of different Stepper Motors, worked quite well. Make sure to set the max current correctly or you could fry the Stepper Motor.
Used successfully with Arduino UNO and Raspberry Pi, no need for a level converter.
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