Driving stepper motors is a perfect ... from the digital pins of an Arduino Mega? Well, to start with you’re not going to be running the beefy NEMA 17 motors like you might find in a 3D printer.

The testing-contraption to the left is a NEMA 17 stepper motor attached to an encoder ... the underlying Arduino library will help you out. Who else is using this part? I’ll be glad to hear ...