NUN-Joy or How Attach a Wii Nunchuk to the CPC

[SyX]

Visiting an Atari 800 webpage, i have found an interesting expansion to CPC. Take a look:

You can find more info in its webpage, even a video

[Bryce]

That's a really neat piece of hardware, and is exactly how I think hardware should be. Useful, small, compatible and simple and he's ticked almost all the boxes. But unfortunately he kept it closed source, no oportunity to build your own. Pity I don't own a Wii or Nunchuck thingy. Otherwise I'd order one.



Bryce.

[SyX]

Unfortunately not everybody can be Sir Bryce

... but i have found a lot of info about how to communicate with the Nunchuk (or even the Classic Controller, a nice gamepad for the Wii, that use the same bus), it uses I2C and the protocol is not complicated, you have to initialize the device sending a sequence (0xA4, 0xF0, 0x55, 0xA4, 0xFB, 0x00) and for reading the control send another sequence (0xA4,0x00,0xA5) to get the 6 data bytes. You have more info here, here or here.

It looks a very interesting expansion that i would like to have with the Bryce's seal of quality 

[Bryce]

Sounds like the kind of handshaking my mouse adapter does, typical for this type of device. As I said, I don't have a Nun-chuck, so it's not really that interesting for me, but good to know.

Bryce.