The Bluetooth module looks fairly easy to interface in Linux, and [Rousselmanu] has a video showing off how well the nunchuck can be used to interact with 3D models.

We’ve received tips from a few different people about a new Bluetooth module that connects as a game cartridge for the Nintendo DS. This is a homebrew solution and not an official Nintendo add ...

Heaton has created the ultimate mod by retro-fitting a Bluetooth module to a trusty Game Boy console, allowing it to pair with external Bluetooth speakers for a fuller, richer sound.