XIAO RP2040

The board as it appears on the Velxio canvas, with its full pin map read live from the simulator (regenerated by scripts/gen-boards.mjs, so it always matches what you can wire).

Family: Pro boards · Languages: Arduino C++, MicroPython

About this board

The RP2040 in the XIAO footprint, with an on-board RGB LED — which is why this board’s examples are about colour rather than about a single blinking pin.

The chip is the same one in the Pico, so RP2040 code ports across; what changes is how many pins come out, and the map below is the authority on that.

Start here

• On-board RGB LED — the board’s own hello.
• Button cycles the RGB adds an input, and traffic light turns it into a small state machine.

Pins (25)

• D0
• 26
• D1
• 27
• D2
• 28
• D3
• 29
• D4
• 6
• D5
• 7
• D6
• 0
• 5V
• GND
• 3V3
• D10
• 3
• D9
• 4
• D8
• 2
• D7
• 1

Every pin above is clickable on the canvas — click one to start a wire. Board-level behavior, quirks and example links live on the family page.