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With a little hacking, data can be read from a wii nunchuck directly into an Arduino, using TWI (aka I2C). The nunchuck contains a 3 axis accelerometer, joystick and buttons for only $19.95. The same accelerometer in kit form, cost $34.95 at Sparkfun. Plus the nunchuck is already wired up in a nice clean case! So the wii nunchuck should fit nicely into anyones robotic project. The nunchuck uses a proprietary connector. Read wii nunchuck data into arduino | Windmeadow Labs Read wii nunchuck data into arduino | Windmeadow Labs
Whew! After weeks of hard work designing, building, and putting together the Confession House, we can finally say that it is DONE! Overall, it wouldn’t have taken that long to complete, but we’ve been bouncing back and forth between various projects, so it just seemed to take a long time. It’s been really fun to have it assembled in our backyard, and we’ve been playing around with the scares by yelling, “Confess! You’re a witch!” Which surely has been perplexing to our neighbors. The Haunt at Hellizondo The Haunt at Hellizondo
Bionic Arduino is a set of four 3-hour classes in November 2007 hosted by Machine Project and taught by Tod E. Kurt. It is an introduction to microcontroller programming and interfacing with the real world using the Arduino physical computing platform. It focuses on building new physical senses and making motion with the building blocks of robotics, using Arduino as a platform. Bionic Arduino – Introduction to Microcontrollers with Arduino

Bionic Arduino – Introduction to Microcontrollers with Arduino

audio-servo Circuit Description From the output of your audio source, the center conductor goes to "Audio In", the outer shield goes to ground. The signal is amplified by U1a whose gain is controlled by R3. You should be able to use audio sources from a line level to a "reasonable" speaker level source and adjust the gain using R3. audio-servo

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