Here's a simple algorithm that uses conventional microcontroller blocks to control commercially available H-bridges to properly commutate a bipolar stepper motor through a microstepping profile.

Symbolic example of quarter-stepping in a bipolar stepper motor. The gradual current and ... was hooked up to my test electronics — an Arduino and a RAMPS 1.4 — to be triggered for ...

The solution is named Ethersweep, and is a small PCB stack that sits on the rear of the common NEMA17-format stepper motor ... with the Arduino software stack deployed, making uploading firmware ...

grbl is stepper motor controller ... for the normal drivers included on grbl Arduino shields (or integrated Arduino+drivers equivalents), and so I have been considering designing my own to link to ...