Fix Raspberry pi Pico W not blinking led

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Raspberry Pi Pico W Led Blink Using MicroPython

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In this reader, we will show you Raspberry Pi Pico W Led Blink Using MicroPython Script. We will go over the required hardware, the MicroPython code, and how to upload it to your Pico.

MicroPython is a lean and efficient implementation of the Python 3 programming language that has a small subset of the Python standard library and is optimised to run on microcontrollers. Raspberry Pi Pico W is a new microcontroller board from Raspberry Pi. It’s small, inexpensive, and gives you the ability to control Sensors with code.

Required Material

What is Raspberry Pi Pico W

Raspberry Pi Pico W is a microcontroller board based on the RP2040 chip designed by the Raspberry Pi Foundation. Raspberry Pi Pico W adds on-board single-band 2.4GHz wireless interfaces (802.11n) using the Infineon CYW43439. Pico W comes with a fully certified module on board featuring 2.4GHz 802.11n wireless LAN

The board is provided with two 20-pin dual in-line headers ( GPIO ) which support a total of 40 GPIO pins, as well as four mounting holes. The board has a USB Type-C port for power and programming, a reset button, and a boot mode chooser button. The Raspberry Pi Pico W also has an onboard LED which can be controlled using GPIO pin 25.

How to Program Raspberry pi pico w

First, we need to connect the Raspberry Pi Pico to our PC using a C-type USB cable. Then we need to open the Thonny IDE and create a new file. We will name our file “ blink.py ”. if you use the first time your Raspberry pi pico then see this guide – How To Program Raspberry Pi Pico With Thonny IDE Step by Step

Blink LED

According to Raspberry Pi official documentation, The onboard LED on Raspberry Pi Pico W is connected to GPIO pin 25.

from machine import Pin
led = Pin(25, Pin.OUT)
led.value(1) //led on
led.value(0) //led off

from machine import Pin

led = Pin(25, Pin.OUT)

led.value(1) //led on

led.value(0) //led off

Raspberry Pi Pico W onboard LED not working

I tried uploading the above code many times but pico W did not Blink the light. The most possible cause of the onboard LED not working is a hardware issue.

Unlike the earliest Raspberry Pi Pico, the onboard LED on Raspberry Pi Pico W is not connected to a pin on RP2040, a GPIO pin on the wireless chip. MicroPython has been modified accordingly. This means that you can now do:

Raspberry Pi Pico W Led Blink Micropython Script

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import machine
import utime

led = machine.Pin('LED', machine.Pin.OUT)
while True:
    led.value(1)
    utime.sleep(1)
    led.value(0)
    utime.sleep(0.4)