Wii Nunchuck

This page provides information relating to interfacing with the Wii Nunchuck.

Inside electronics

Pinout on the nunchuck board from left to right: (unverified)

• yellow: SCL. I²C Serial Clock. (400 kHz)
• green: SDA. I²C Serial Data
• blue: ?
• white: Ground
• red: 3.3v

More information

• Hardwarebook on the connector pin-out