Pico RP2040 HID Joystick Library for Arduino IDE
UPDATE: For your board, you need to use the "Arduino Mbed OS RP2040 Boards"-"Raspberry Pi Pico" which you can get from the boards manager. It includes the lower level libraries required for this one.
I don't think that ones the most commonly used one anymore, but it was back when I made this :-(
UPDATE: If you want to skip the coding altogether I've made an configurator that does all the work for you at https://realrobots.net/configurator
I'm going to show you how to make your own HID gamepad / joystick using a Raspberry Pi Pico RP2040 in the Arduino IDE. C++ all the way, no Circuit Python here.
You'll need the following library from Realrobots (that's me!)
https://gitlab.com/realrobots/PicoGam...
Here is the final circuit
https://realrobots.net/img/youtube/ci...
and the RP2040 pinout which comes in handy since they printed the pin numbers on the wrong side of the board with these things.
https://realrobots.net/img/youtube/ra...
If you like stuff like this, buy me a coffee at
/ realrobots
STL files for the gamepad (originally uses an ESP32 but the Pico will fit too)
https://www.thingiverse.com/thing:484...
0:00 Set up library
1:12 Open Code Example
2:09 Circuit Diagram
2:28 Connect Potentiometer
3:44 Connect Push Button
7:17 Connect Thumbstick