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.

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.

AMI Semiconductor, a manufacturer of integrated mixed-signal and structured digital products, has introduced two single-chip stepper motor controller ICs.

Numerous machines designed with stepper motors for economic reasons could deliver better user experiences if they were quieter, smoother, and more energy-efficient. New control ...