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Installing MicroPython on Pico W + First Code

🛠️ Installing MicroPython on Pico W

📋 Step-by-Step Installation:

Step 1: Download MicroPython Firmware

Go to micropython.org/download/rp2-pico-w/
Download the latest .uf2 file for Pico W

Step 2: Put Pico W in Boot Mode

Press and hold BOOTSEL button → Connect USB cable → Release BOOTSEL
Pico W appears as "RPI-RP2" drive

Step 3: Install Firmware

Drag and drop the .uf2 file to "RPI-RP2" drive
Pico W restarts automatically with MicroPython installed

Step 4: Install Thonny IDE

Download from thonny.org
Select: Tools → Options → Interpreter → MicroPython (Raspberry Pi Pico)

📖 First MicroPython Code - Blink LED:

# Raspberry Pi Pico W Blink LED
# Built-in LED is on GP25 (WiFi LED) or add external LED to GP0

from machine import Pin
import time

# Use built-in LED (GP25) or external LED on GP0
led = Pin(25, Pin.OUT)  # GP25 = built-in LED

while True:
    led.value(1)   # Turn LED ON
    print("LED ON")
    time.sleep(1)
    
    led.value(0)   # Turn LED OFF
    print("LED OFF")
    time.sleep(1)

📖 Reading Button Input:

from machine import Pin
import time

button = Pin(0, Pin.IN, Pin.PULL_UP)  # Button on GP0
led = Pin(25, Pin.OUT)

while True:
    if button.value() == 0:  # Button pressed (LOW)
        led.value(1)
        print("Button pressed! LED ON")
    else:
        led.value(0)
    time.sleep(0.05)

✅ Success!

Your Pico W is ready for IoT projects! MicroPython makes programming simple and powerful.

💡 Key Takeaways:

Apply these concepts directly to your farm or project.
Take notes on important details for the quiz.
Use the button below to track your progress.

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