Wii Nuncuck - Convert to USB - Replace Analog Stick - Add 5 buttons

[ChoasPancake]

Left Hand Analog Stick Controller

I want to mod a Wii Nunchuck to be a USB controller with a clickable analog stick, 3-way accelerometer and 7 buttons to use with my left hand in PC games. Crude drawing of what I want to build: http://imgur.com/iFBZkpL


Mods

I will need to make 3 mods to create my project:

1) Convert a Nunchuck into USB controller retaining its 3-way accelerometer and all buttons.
2) Rip out current Analog Stick and replace with clickable Analog Stick.
3) Add 5 tactile buttons.

Components I have

Teensy 3.1 Board
USB Cable
Official Wii Nunchuch
Thin Wire
Clickable Analog Stick: https://www.coolcomponents.co.uk/thumb-joystick.html
Tactile Buttons: https://www.coolcomponents.co.uk/tactile-switch-buttons-6mm-slim-x-5-pack.html


Tools I have

Soldering Iron
Glue Gun
Screw Drivers

HOW?!!?!

I know this is possible, but I have no idea what I am doing, or if I have enough components or the right tools. Can anyone please give me advice or link me to some tutorials that will help me with any the 3 mods I want to do? Any help would be very much appreciated! Thanks for reading.

 

[PaulStoffregen]

My understanding of the Wii Nunchuck is it communicates with I2C. I haven't personally used one, but here's a couple threads where people talked about connecting them to Teensy:

https://forum.pjrc.com/threads/21680-New-I2C-library-for-Teensy3

https://forum.pjrc.com/threads/15561-Read-wii-nunchuck-on-teensy-3-0

I'd image this project would be best to do as 3 sub-projects.

1 - get the nunchuck working with Teensy, so you can see its data printed to the arduino serial monitor.
2 - add code to send joystick stuff when the nunchuck changes.
3 - add the extra buttons, and have them send more joystick stuff.

 

[ChoasPancake]

Hey thanks for the help. I have a lot of reading to do. If I am perfectly honest I am way over my head. I don't understand half of what I am reading. So I am going to take it 1 step at a time. 1st I would like to follow this guide:

http://www.instructables.com/id/USB-Mouse-Made-Out-Of-A-Wii-Nunchuck/

I don't have a breadboard yet. But when I do would anyone be willing to help an newbie understand the guide? The part I am unsure about is "Step 3: Prototyping on Breadboard" because he has no clear picture of what wires have been put where.