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.

Leveraging the Trinamic TMC2208 stepper motor driver gives Ethersweep ... implemented in KiCAD and FreeCAD, with Arduino covering the firmware and host control side in python.

Closed loop steppers are now finding adoption in a range of cost sensitive applications such as medical and lab automation, ...