Computing stuff tied to the physical world


In AVR on Nov 9, 2008 at 00:45

The Wii Nunchuk controller is really just an I2C device, with a triple-axis accelerometer, an X-Y proportional joystick, and two push buttons. Breaking it out of its case allows us to connect it in ways it was never meant for:


It’s very easy to hook up to an Arduino and there’s a good example on the web to read out all the sensors. I’ve tweaked it a bit to use pins 8 and 9 as the I2C/TWI interface.

Connections above are as follows: red = +3.3..5V, white = ground, green = SDA, yellow = SCL.