Wii Nunchuk not recognized about steccy

[ukw100]

No change to the ini file is necessary here, the nunchuk or gamepad should be recognized automatically. Are the other pins connected correctly? Do you have an original nunchuk or a clone?

The documentation shows the connector of a nunchuk from the front. Perhaps you can take a photo schowing the connections.

[pierrebak]

Thanks for your prompt feedback.
Apparently, it's a genuine one (the brand Nintendo is visible on it).

I'm using I2C adaptor for Nunchuk from Adafruit.
Power is on 3v on STM32
Grd on Grd
SDA on PB9
SCL on PB8

I can purchase a new one and cut the connector to make a direct connection to the board, but if the issue comes from the board, the Nunchuk will be useless.

Steccy is working fine with USB keyboard, but using a Nunchuk woud be even more enjoyable.

I've powered the board using USB standard charger first, just by adding the Nunchuk on I2S GPIO's.
Then, I've used a STM link to power the board through GPIOs.
Nunchuck is still not responding.

Thanks.