3rd party compatibility list. Post Your working controllers

[mastercheff]

I'll start with the the pads that worked (wired) for me

Razer Wildcat , xbox one era "pro" controller
8bitdo Ultimate 2C (fw 1.06)
Gamesir Nova Lite (fw 6900)
BigBigWon Rainbow 2 SE
BigBigWon Rainbow 2 Pro
8bitdo M30 2.4g

[mastercheff]

Got another one working, just needs start+B (Xinput mode) to initialize https://segaretro.org/images/c/c5/RB_SEGA_Saturn_USB_EU_MANUAL_051019.pdf

great pad for street fighter type games, and it can be modified with genuine Sega Saturn parts for even better performance (dpad,actuator and buttons)

[Luieee415]

2.4Ghz version doesn't initialize for me with USB dongle or micro USB cable. Yours is the hardwired USB version, correct?

[LeGittee]

Logitech f710 (tested on PC in Xinput mode, I assume the Dinput mode also works) The rumble seems to stop working sometimes
Logitech f310 (I did not test it fully but it was recognized by the Pico, I assume it works)

I tried a third party Xbox 360 controller of the brand "Under Control" which did not work, I assume the gamepad does not get enough power through the Raspberry Pico

NOTE: For the test I had a USB cable soldered between a female USB port and the GP0 and GP1 of my Pico board. I played with the Logitech F710 for around 30 minutes on my Xbox 360 (through a Cronus max 3 adapter) and it seems the GPIO ports are fried

[coldchick]

xbox 360 clone controller wired on xbox original.
xbox 360 original controller wireless, with clone receiver on xbox original.
xbox s controller wired original on windows and xbox 360 with usbdpatch.
PXN-0082 arcade joystick on xbox original
PXN-0082 arcade joystick on xbox 360 with usbdpatch.
Stering wheel (U) wireless xbox 360 controller, with clone receiver on xbox orginal.

[mastercheff]

Gamesir Nova 2 Lite (needs 'reset' button pressed on the board to initialize)
Gamesir T3 Lite 'Tegenaria'