> 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)`.
> 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.