GCPadDump shows nothing

Question

GCPadDump shows nothing

Closed this issue 2 months ago · 5 comments

Hi,

Thanks for your work on this project.

I tried to use the GCPadDump with several Arduino uno's and one nano, and haven't gotten any of them to work as expected: nothing gets shown in serial monitor, even though im pressing buttons and moving joysticks on my original gamecube controller.

I tried a 1k and 10k ohm between data and 3.3V, nothing changed. I checked all different grounds, 3 , 4 and 7 none of them changed anything either.

I probed with a multimeter the inside of the controller to make sure the 3.3V and GND pins were going through and seated properly, which they where.

Any tips? I guess the next step would be to buy an oscilloscope...

Thanks!

Answer 1 · 2022-05-10T11:49:59.000Z

ARIVERDERCHI commented 3 years ago

Answer 2 · 2022-05-10T12:30:24.000Z

You seem to be using pin 2, but the library has pin 3 enabled by default on the Uno. Did you edit the pinconfig.h file to change that?

Answer 3 · 2022-05-10T14:19:54.000Z

Ah ok thank you, now I see some values :)

I was using pin 2 because it was written in the comments of the GCPadDump.

Now it only shows gibberish though, says I'm pressing down buttons when I'm not, and values don't change when I move sticks. I forgot to switch 3.3V with 5V for my original controller (before I was testing this other controller that only had the 5v pin).

Do you know if the controller board has over voltage protection on the 3.3V pin? Could i have broken the controller board by giving 5V on the 3.3V pin?

Thanks!

Answer 4 · 2022-05-10T15:30:13.000Z

It's possible that you broke the controller but it's very unlikely. Make sure to connect both ground pins and use a 1k pull-up.

I know I should update the docs...

Answer 5 · 2024-11-20T14:32:13.000Z

Closing since there was no update in a long time.