[Brian B] found a handful of servos at his local ... a little super glue to the potentiometer, and puts the thing back together again. A few lines of code and an Arduino confirms that the hack ...

With just one wire, an Arduino, and some really neat code, [peter] can ... in the video after the break, the servo knows its position thanks to an internal potentiometer on the motor’s rotor.

The Arduino is a cheap ... electricity, breadboarding, coding, sensors, servos, remote controls, assembly, and more. Building a robot arm is a long-term project that can cover all these needs ...