[Tobias Kuhn] had watched a YouTube video about a robot arm which used servo motors, and wanted to try making one himself. But he found it hard to get slow or smooth movements out of the servos. Even ...

[youtube http://www.youtube.com/watch?v=8L8hY8siUMQ&hl=en&fs=1&] Eventually all music will be made this way: a 24-volt power supply, an Arduino board, and three ...

Bipolar stepper motors are used in many applications, from driving paper through a printer to moving an XY stage in industrial equipment. Typically, the motors are driven and controlled by inexpensive ...