This is a generic Wii Nunchuck controller, they haven't tried it with a Wii but it does work great with the Video Game shield, and all the microcontroller code they tried.
Adafruit suggest getting a Nunchucky breakout board if you want to use this with an electronics project.
There's a 3-axis accelerometer inside as theyll as a resistive 2-axis joystick and two buttons. You can grab the data over two i2c data lines. There's tons of example code for all sorts of microcontrollers for these guys!
- Length: 110mm/4.32in
- Width: 40mm/1.58in
- Height: 52.61mm/2.07in
- Weight: 77.56g2.74oz
- Cable Length: 1.16m/46.0in