So he started to wonder if he could skip the controller entirely and connect the stepper motor directly to the digital pins of an Arduino.

Rather than write a bunch of stepper motor code himself, he installed and ran a four-axis fork of grbl on the Arduino, turning it into a stepper motor controller.

How to Control a Stepper Motor Using a Computer. Stepper motors produce accurate, computer-controlled motion for applications such as robotic arms and paper-feed mechanisms for printers.

The CMMS-ST controller differentiates itself from conventional controllers by eliminating resonance, heating, and loss of step—performance issues inherent in stepper motor systems, says the vendor. In ...

Advanced internal current sensing provides better current regulation in bipolar stepper motor drivers, which improves the quality of motion.