Jason at tuts+ posted this great tutorial to connect your wii nunchuck adaptor to your pi and use python to control the turtle module.
In this tutorial I’ll show you how to connect a Wii nunchuck adaptor to a Raspberry Pi and use Python to control the turtle module.
This tutorial works with both official Nintendo or 3rd party nunchucks. The nunchuck is a good multi-use input for a Raspberry Pi as they can be picked up cheaply and contain a joystick, a three-axis accelerometer and two buttons in a nice ergonomically friendly controller.
To get the nunchuck running with the Pi, you will need:
- A Raspberry Pi with SD card preinstalled with Raspbian (refer to the tutorial How to Flash an SD Card for Raspberry Pi if you need to)
- A Nintendo nunchuck
- An adaptor such as MultiChuck
- Or female jumper wires, soldering iron, solder and electrical tape to cover the joint
Hooking up your Nunchuck
If you are feeling brave, enjoy cutting the connectors off and have spare controllers you can hook the wires directly up to the Raspberry Pi GPIO pins. As each connector may use different coloured wires, it is best to open the controller to work out the wiring colours.
In my controller I have the following wires, as this is a third-party controller, take note of the colours and the pins to which they connect, as the chances are they could be very different to the connector in my example.
- Serial Data–Pink
- Serial Clock–Yellow
- Power (VDD)–White
- Addon Detect–Blue–Not used
Cut off the end connector that you plug into the Wiimote, strip back the plastic coating to expose the bare wires. Solder each wire to a female jumper wire, then use electrical tape to protect the soldered joints from touching each other. Once you are sure each colour matches its respective wire, plug them straight on to the i2c and power pins on the Pi.
If you aren’t feeling that brave, or you don’t have a controller to spare, you can always use an adaptor such as the MultiChuck Adaptor to connect your controller to your Pi without sacrificing the connector.
See the full tutorial here.
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