Blink the Pico 2 W Onboard LED with MicroPython

This example demonstrates two basic MicroPython operations: configuring a GPIO output with machine.Pin and delaying execution with time.sleep.

Program

from machine import Pin
from time import sleep

led = Pin("LED", Pin.OUT)

while True:
    led.toggle()
    sleep(1)

How it works

  1. Pin("LED", Pin.OUT) selects the board’s named onboard LED and configures it as an output.
  2. led.toggle() changes the current LED state.
  3. sleep(1) waits one second before the next state change.
  4. The while True loop repeats until execution is stopped.

The LED changes state once per second; a complete on/off cycle takes about two seconds. No network connection is used.

Run it on the board

Install the matching MicroPython firmware for your Pico 2 W, connect through a compatible editor or MicroPython REPL, and run the source program. Saving it as main.py on the board lets MicroPython run it at startup.

See the official MicroPython RP2 quick reference and firmware setup guide. This repository contains the example; the documentation update did not test a physical board.

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