Currently there's no way to switch what device is being emulated on the fly, so the firmware must be compiled specifically for whichever platform you'd like to play on. As long as that's the case, I'll provide compiled .uf2 files for each platform in Releases.

Supported devices

Wired controllers

Original Xbox Duke and S
Xbox 360, One, Series, and Elite
Dualshock 4 (PS4)
Dualsense (PS5, Dualsense Edge should work but it's untested)
Nintendo Switch Pro
Nintnedo Switch wired (tested with PowerA brand, no rumble)
Nintendo 64 USB (experimental, tested with RetroLink brand)
Playstation Classic

Wireless adapters

Xbox 360 PC adapter (Microsoft or clones, syncs 1 controller)
8Bitdo v1 and v2 Bluetooth adapters
Most wireless adapters that present themselves as Switch/XInput/Playstation controllers should work

Note: There are some third party controllers that use incorrect VID and PIDs, these will not work correctly.

Adding supported controllers

If your third party controller isn't working, but the original version is listed above, send me the device's VID and PID and I'll add it so it's recognized properly.

Compiling

You can compile this for the Pi Pico by commenting out this line in CMakeLists.txt add_compile_definitions(FEATHER_RP2040) That will set the D+ and D- host pins to GPIO 0 and 1. Below that you can uncomment whichever platform (OG Xbox, Xinput, etc.) you'd like to use.

Here's a diagram of how you'd use the Pico:

Special thanks

Thank you to Ryzee119 and the OpenStickCommunity, without their work this project would not exist.