[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor assembly ... up to the motion controller upstream. The Arduino source for this can be found on the project ...

You’ll need an Arduino and four hobby servo motors. The cardboard doesn’t ... You can control it all from the Arduino program or add an IR receiver if you want to run it by remote control.

Stepper and servo motors have ... loop controlled. Which motor is better for load holding? How to make a submersible glider out of a water bottle, syringe, an Arduino, and a stepper motor.