If you want to develop a program on Arduino with Raspberry Pi, then this tutorial has all the steps you need to take for it, in detail.

You could simply program your machine to give a visual indication of whether it's a lie or the truth by programming your Arduino to detect large shifts in your electrodermal activity.

Posted in 3d Printer hacks, Arduino Hacks Tagged 3d printer, arduino pro mini, closed loop, closed loop control, dc motor, optical encoder, reprap, servostrap ...

An Arduino Pro Mini provides the brains for the charger, and the source code and all the needed information to build your own like charger is on GitHub.