WiiChuckMouse

This code lets you use a Wii Nunchuck controller as a usb mouse by utilizing the Teensy board's usb device emulation capabilities.

Here's a Youtube video of it in action.

Hardware Requirements

• A Teensy board
• A Wii Nunchuck breakout board (e.g. Nunchucky or WiiChuck Adapter)

The current code assumes that power (+ or 3.3v) and ground (GND) are both soldered directly to the Teensy board's power (VCC) and ground (GND) pins. If not, it's a simple fix: change the chuck.init(0,0) call in setup() to chuck.init(VCC,GND) where VCC and GND are the pins on the Teensy where you soldered power and ground. (Just to be safe, I put a 3.3v regulator between the Teensy and the WiiChuck because the WiiChuck is designed to run at 3.3v and running at the 5v of my Teensy 2.0 might (probably won't) damage it over time).

I have clock (clk/c) soldered to D0 and data (d) soldered to D1 on the Teensy.

Software Requirements

• Teensyduino (Arduino software with Teensy add-ons)
• WiiChuck Arduino library

You'll need to download and import the WiiChuck library so that this code can include <Wiichuck.h>. Should be as easy as downloading the zip and then selecting sketch -> import library -> add library in the Teensyduino software. This code assumes you're using the Teensyduino add-ons for Arduino so that things like Mouse exist automatically (as the Teensy can emulate a mouse).

Controls

• Accelerometer = mouse move
• Z = left click
• C = right click
• Joystick Y-axis = scroll wheel
• Holding Z+C for ~3 seconds will disable the wiichuck so that you can set it down and type or whatever. Holding Z+C again will re-enable the wiichuck.

Unfortunately, I couldn't find a way to do horizontal scrolling with the Teensy. I also couldn't think of a way to incorporate middle-click. The mouse movement is also a little slow/laggy currently.

License

Copyright (C) 2014 Sean Hickey (Wisellama)

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.