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

He’s using two Arduino Megas. One is solely for the ... which he controls with a Polulu Qik serial DC motor controller. In compass steering mode, a Pololu IMU locks in the heading to steer ...

At last, some 'spare' time this weekend, and I learned two things about SCR dc motor control: Permanent magnet dc motors need ...

En route to getting the off-the-peg DC-51 motor speed controller to better suit my small milling machine, I had a go at working out what the circuit is. Approx circuit of DC-51 motor speed controller ...