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This makes an RP2040 Raspberry Pi Pico usable as a WebUSB 2x20 pin GPIO from JS or e.g. Python in WASM.

/q rp2040 "WebBluetooth"

awesome-web-serial lists a few RP2040-compatible things: https://github.com/louisfoster/awesome-web-serial

web-bluetooth-repl is a REPL over WebBluetooth with MicroPython devices that support Bluetooth: https://github.com/siliconwitchery/web-bluetooth-repl

Pybricks does MicroPython over WebBluetooth with a NextJS app.

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Also, the Ryanteck RTk.GPIO (PC GPIO Interface) has USB and 2x20 pin GPIO: https://uk.pi-supply.com/collections/all-raspberry-pi-hats-a... :

> The RTk.GPIO is a Plug & Play USB Device which adds 28 x Raspberry Pi style GPIO pins to your computer

The Pi Pico RP2040 has one onboard LED on pin 25. The Pi Pico W (RP2040W) has an onboard LED but it's no longer connected to the 2x20 GPIO, so it's `machine.Pin("LED")` instead of `machine.Pin(25)`.

Wokwi has a WASM Pi Pico simulator.

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