Naturally, an Arduino drives the whole affair ... stepper lowers the cutting head which is spinning with a common DC motor. As impressive as this machine is, the fact remains that a 3D printer ...

Getting a robot to stand on two wheels ... An Arduino Uno takes this data, runs it through a PID loop, and commands an L298N motor driver to adjust the speed and direction of two DC motors.

This wheel has the time written out in 10 minute intervals which is indicated by a marker. Powering all of this is an Arduino Micro telling a 5V stepper motor when to stop. If you want to make ...