Tod E. Kurt put together a nice Boarduino demonstration, connecting the device to the Wii Nunchuck and using it to control the position of a servo. As you rotate the device, the servo continuously adjusts its position to point straight up.

The Boarduino’s small footprint made me want to see how small of a device I could whip up in an hour from some fairly complex components. So I decided to see how small the combination of a Boarduino, a Wii Nunchuck, and a hobby servo motor could be. Here’s a little video of the result.

His demo is nicely documented and the source is available and extremely digestible. I’ve been monkeying around with BS2 hardware for too long. This has convinced me it’s time to upgrade.

Boarduino, Wii Nunchucks, and Servos – Link
Boarduino: compact, breadboard compatible Arduino clone – Link
Hook your Wii nunchuck up to an Arduino – Link