Wii Classic Controller Connected Directly to I2C GPIOs on RP2

[problemkid]

Hi, Ive got a RP2 and got the image loaded on. I have my controller connected directly to the I2C GPIO pins on my board using alligator clips. White is Ground, Green = SDA, Yellow = SCL, Red = 3.3V. I found that out from here: https://allpinouts.org/pinouts/connectors/videogame/nintendo-wiimote/

I've got the image loaded on the sd card, and I'm at the retro pie WELCOME screen. It says 'NO GAMEPADS DETECTED' and hold a button on device to configure. I've tried holding down every single button on my controller to no avail.

Here are some pics:

If anyone could help me trouble shoot problems and get this controller working that would be a great help.

[stuntstein]

Isn't the port on the Wii remote for the Wii nunchuck?
Which means that the wiimote i2c port is probably a master and the i2c port on the nunchuck is a slave. And I would guess that i2c port on the rpi is also a master which will not work with the wiimote, master 2 master doesn't work. One master and multiple slaves works.

[problemkid]

the classic controller plugs into the wiimote just like the nunchuk

[stuntstein]

ok, my bad then.

You might have to check the i2c addresses then.

[problemkid]

Well this is what happens when you realize Retropie doesn't yet support direct I2C connections.

Re-attached half of a nunchuck cable, going the Bluetooth route as it seems that's the only way to connect a Wii controller+accessory to Retropie.