Arduino WiiChuck

With a little hacking, data can be read from a wii nunchuck directly into an Arduino, using I2C. The nunchuck contains a 3 axis accelerometer, joystick and buttons.
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來源: http://blog.booksforce.com/2008/06/15/arduino-wiichuck-%e9%80%82%e9%85%8d%e5%99%a8/