paper: Control an FRC bot with a Wiimote

[cjtenny]

Well, I2C is a standard protocol. I actually have a nunchuk sitting in my room for use on another non-FIRST robot... haven't gotten around to it, though.

But, yeah, you bring a good point -- I forgot you load code to the RC. What you'd have to do for the OI would be build a custom circuit that turns the nunchuk output into some serial-joystick type output. That part's probably not too hard, just stick a uC on a breadboard -- the question is, would that be legal?

[Greg Marra]

Originally Posted by cjtenny

Well, I2C is a standard protocol. I actually have a nunchuk sitting in my room for use on another non-FIRST robot... haven't gotten around to it, though.

Do you have a hyperlink for using a Nunchuk via I2C? I am doing a bit of Googling but only turning up people working on it, not anyone who seems to have an implementable solution. I found a site showing you how to make a Wiimote add-on, but nothing explaining how to use a wiimote add-on on its own.

I'm not very familiar with microprocessor communication protocols other than serial, so I am very excited to find out more about this. Using a nunchuk on its own would be really cool.

Originally Posted by Tim Arnold

Every time that using the Wiimote has come up, I have laughed it off and said it was nearly impossible and incredibly impractical to do.

Thanks Tim. This implementation still isn't competition legal, and it's very impractical, but it is a step towards possible. This "nunchuks use I2C" business could result in competition legal use of the Nunchuks, which would be awesome. Alternatively, I suspect Nunchuks are possible to circuit-hijack. I'll take one apart at some point and look, but I lost my tri-head screwdriver

[cjtenny]

Let me get back to you about this on Wednesday, after my history midyear. I'll try and write something up / figure something out...

[cjtenny]

In the meantime,
http://www.windmeadow.com/node/42?page=1

It doesn't show you how to get down-and-dirty with I2C, but the hard part would be going from I2C to whatever the OI wants.