LEGO MINDSTORMS hacker Akihiro Uehara built an interface between an AlphaRex and a Wii Balance Board.

User can control the robot’s leg motors speed and direction by changing the vector connecting user’s center of balance and center of the board.
I have designed this application for elementary school kids in a science museum exhibition.

Don’t forget to leave a comment on our Facebook fan page to participate in our Lego Mindstorms NXT 2.0 giveaway. [Thanks, Akihiro!]