Wii Nunchuk Adapter

This WiiChuck adapter from Keyes connects a Wii Nunchuk to a microcontroller such as Arduino without cutting the Nunchuk cable. The Nunchuk plug is pushed onto the board, and the 4-pin header brings out GND, supply, data and clock of the I2C bus. This allows, for example, a robot arm to be controlled with the joystick, the buttons and the acceleration sensor of the Nunchuk.

Recommended Accessories:

• Dupont Cable M-F 20cm 20 Pieces

Features:

• 4-pin header marked −, +, d, c
• d is SDA (data), c is SCL (clock)
• According to todbot it plugs directly into A2 to A5 of an Arduino UNO: A4 and A5 carry I2C, A2 and A3 power the Nunchuk via software
• If powering via A2 and A3 does not work, connect + and − with Dupont cables to the supply and GND
• Wii Nunchuk not included

Application Examples:

• Controlling a robot or robot arm with the Nunchuk
• Moving a pan-tilt head for a camera
• Input device for games and Arduino projects

Documentation:

• WiiChuck adapter, connection and library (todbot)
• Arduino Nunchuk library (GitHub, no longer maintained)

Technical Data:

• Marking: Keyes, WiiChuck, Kduino01
• Interface: I2C
• Connections: − (GND), +, d (SDA), c (SCL)
• Operating voltage: 5 V DC
• Dimensions: 26.5 × 7 × 11 mm
• Weight: 1 g

Scope of Delivery:

• 1× Wii Nunchuk adapter