Robotic Labyrinth Wii Fit game

Robotic Labyrinth Wii Fit game - SlipperyBrick.com: "Some DIYers from the Cowtown Computer Congress used some servos and an Arduino processor to connect a wooden Labyrinth game to a Wii Fit. Why? Is there ever a reason? It just had to be done. Simple as that. Basically it makes the game more difficult."