Request for support for main USB and PSC mode gamepad mapped to keyboard.

[LMN128]

This is a great project. If I may suggest something, I (and maybe others too) would find it useful to have:

• the option to use the main USB instead of GPIO2/3 or GPIO4/5.
• and also the option to use gamepad controllers in PSC mode, thanks to the 8BitDo Wireless Adapter 2, mapped to the keyboard. Here’s an example:
  nanoant/ps2x2pico@bd3bf45

Thanks a lot.

[LMN128]

Version 1.01 supports main (native) USB port. Great news. Thanks a lot.

[LMN128]

Version 1.02 added Joy and Gamepad support. Thanks a lot. A simple example of mapping eg. direction to keyboard arrow will be very useful, please. Thanks a lot.