To interface with the Wii Motion Plus is similar to the nunchuck, and I need a little bit of help in that regard. How does one work with the connections in the device without causing permanent modification to the MotionPlus?
checkout http://randomhacksofboredom.blogspot.com/2009/06/wii-motion-plus-arduino-love.html for pinouts. I just use jumper wires wedged into the connector - I didn't want to hack them up and I dont have the adaptor board.
Theres also references to butchering an old ISA card for the edge connectors on the PCB to use as your own 'nunchuck' adaptor - I dont recall the URL or which site had that info..