Wiichuck: the Quickest Way to Hack Your Nunchuck Controller
This tiny little 1cm x 3cm circuit board may not look like much, but the WiiChuck is the easiest way ever to unlock the world of Wii Nunchuck hacking.
Just plug the WiiChuck into to bottom of your Wii Nunchuck controller, and you’ll have access to all of the wonderful data the controller can generate.