Flash the Firmware

Download and install CircuitPython for your board by dragging the `.uf2` file onto the board while it is in bootloader mode (hold BOOTSEL while plugging in on a Pico).

Copy the `adafruit_hid` folder from the Adafruit CircuitPython Bundle into the `/lib` directory on your `CIRCUITPY` drive.

Copy `code.py` to the root of the `CIRCUITPY` drive. If you used different pins in the previous step, edit the `*_PIN` constants near the top of the file before copying. The board will reboot automatically and the controller will start working immediately.