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WiiChuck Adapter
The WiiChuck Adapter is a small PCB that is designed to be inserted into the connector of a Nintendo Wii Nunchuck to provide access to all 4 wires of the remote. The power, ground and two-wire interface of the Nunchuck are all broken out to a 4-pin 0.1" pitch header.
The Wii Nunchuck is loaded with features -- a 2-axis joystick, two buttons and a 3 axis ±2g accelerometer -- and any device capable of I2C can communicate with it! The WiiChuck allows you to interface with the Nunchuck without making a mess and cutting the wires.
Note: This product is a collaboration with Tod E. Kurt. A portion of each sales goes back to them for product support and continued development.
- WiiChuck Homepage (great tutorials and Arduino library)
WiiChuck Adapter Product Help and Resources
Core Skill: Soldering
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Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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I made a Youtube demo for the WiiChuck:
http://www.youtube.com/watch?v=waXfWcn2IEQ
How can I interface this with the Arduino Pro Mini? It doesn't have A4 and A5 so the standard library does not work.
The current Pro Minis do have A4 and A5, it's just that the headers are inboard of the outer row. See the bottom-side picture here. Hope this helps!
This part makes the nunchuck easy to use. In a matter of minutes I was receiving the nunchuck data, and in a few more minutes, controlling a servo with the joystick. I wish it came with the headers already soldered on, but, even with my poor soldering abilities it wasn't a problem - and at less than $2 I wasn't too worried about it. (It would just look much nicer, but that doesn't matter much when the part won't even be visible in the completed project)
Update: Now I have a completely functional Wii Nunchuck computer mouse being used with the Arduino Micro. While it's fun to use, and it will be the replacement mouse for my backup computer(so rarely used that I lost the mouse for it), I doubt I'd use it as the only mouse on my main computer.
I've made a Laser pointer steered with two servos, WiiChuck and Arduino Uno, used this adapter! Full instructions are on my blog: http://maxoffsky.com/maxoffsky-blog/arduino-wiichuck-steered-laser-pointer/
How come my contoller has five wires and not just four?
Hmmm, I've noticed that the pins pretty nearly match those of a GameCube controller, more on this discovery after some testing...
YUP Confirmed that this adapter does fit exactly with gamecube controllers. I don't have any good leads on drivers for the controller right now, but im sure there is something out there. But either way, this is a very nice second use for this.
You should point out in the product description that this also works with the motionplus accessory. Gyroscopes and accelerometers! Great for arduino projects. I'm actually getting one to sense movement of the gun in my virtual reality project.
This project uses the Nunchucky 1.0 from Solarbotics, but it really doesn't matter ! It shows a quick and cool way of connecting the Wii Nunchuck to and Android device ...
http://trandi.wordpress.com/2011/07/24/android-ioio-wii-nunchuck/
Enjoy !
Dan
Hello,
I have a problem when working with WiiChuck and Adafruit Motor shield (http://www.ladyada.net/make/mshield/index.html).
Without the shield everything is working but when I mount the shield (and use the same pins with are just directed on a shield) Wiichuck stops working (doesn't give me any data). Is it somehow connected with the I2C?
as stated on the wiichuck homepage, it is i2c.
The Wii Nunchuck needs 3.3V.
Please remake this item with a simple 3.3V LDO and a few caps (a PCB with hooks for the Nunchuck to grab onto would be ideal).
5V will smoke your Nunchuck after a short while.
And , please tell people that many aftermarket (non-OEM) Nunchucks do not function right with the Arduino.
Less pain = less discouraged customers :)
The original designer (poorly?) designed this for 5V and I wonder; why can't you just feed it the 3.3 Vout from the Arduino instead??? You will have to use jumper wires, but why don't people do this? For the record, I haven't tried this myself.
I just hooked it up today and it seems to work fine with 3.3 V from the Uno, if anyone was wondering.
Just ordered one of these:
http://www.gogamer.com/viewproduct.htm?productId=87737371&AID=171950&PID=404255&SID=157567
The wireless 'chuck' along with this adapter will make for some handy controlling of the projects...
There are a few different Wii Nunchuck sketches available, but I have not found any that work with this specific wireless nun chuck. Have you had better luck?
Why does this have to be 3 bucks? Can't it be produced for less, sacrificing the white soldermask?
Your wish has been granted, how's $1.95? But now you have to find something that's a good deal so we can raise the price...
I wish you guys would either carry the "Nunchucky" or design & make your own.
http://www.solarbotics.com/products/31040
I agree that design seems slightly more effective, but in any case all the Wii peripherals (wiimote, the nunchuch the motion plus, etc. ...) are such great pieces of hardware and so easily hackable, that you wonder if the Nintendo guys had the hobbyists in mind when they designed the Wii... :)
Here are a few interesting examples of how you can connect various Wii peripherals to different micro controllers (Arduino, FEZ Domino, ARM Cortex, etc. ...):
http://trandi.wordpress.com/2011/01/16/wii-motion-plus-and-arduino/
http://trandi.wordpress.com/2011/04/03/the-wiimote-and-fez-domino/
http://trandi.wordpress.com/2011/01/23/wii-motion-plus-gyros-on-lm3s8962-i2c-on-coocox/
Dan
bperrybap:
That does seem like a more convenient design - in for one of these anyway, as its only 2 bucks.
there used to be one just like the one in the link. guess this replaced it.