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COMPUTER CODING

Written by Metatron

Are you a tech enthusiast eager to dive into the world of electronics and coding? Have you ever wanted to create a simple yet captivating project using a tiny microcomputer? If so, you’re in for a treat! In this comprehensive guide, we’ll walk you through the process of turning on an LED using the versatile Raspberry Pi Zero or the powerful Raspberry Pi Pico, all while harnessing the power of Python programming. Let’s get started and illuminate your creative ideas!

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Step 1: Gather Your Materials
Before we embark on our LED illumination journey, let’s ensure we have everything we need:

Raspberry Pi Zero or Raspberry Pi Pico
Breadboard
LED (Light-Emitting Diode)
Resistor (220-470 ohms, depending on the LED)
Jumper wires
Micro USB power supply
Computer with internet connection
MicroSD card (for Raspberry Pi Zero)
USB cable (for Raspberry Pi Pico)
Step 2: Set Up Your Microcomputer
For Raspberry Pi Zero:
Insert the microSD card with the Raspbian OS into your Raspberry Pi Zero.
Connect the micro USB power supply to the Raspberry Pi Zero.
For Raspberry Pi Pico:
Connect the Raspberry Pi Pico to your computer using a USB cable.
Step 3: Wire Up the Circuit
Place the LED on the breadboard, ensuring the longer leg (anode) is connected to the positive rail and the shorter leg (cathode) is connected to the negative rail.
Connect a resistor from the cathode of the LED to a vacant row on the breadboard.
Connect a jumper wire from the other end of the resistor to a GPIO pin on the Raspberry Pi (e.g., GPIO17 for Raspberry Pi Zero or GP16 for Raspberry Pi Pico).
Connect another jumper wire from the anode of the LED to a ground (GND) pin on the Raspberry Pi.
Step 4: Write the Python Script
Now comes the exciting part – coding! We will create a simple Python script to control the LED.

Open your favourite text editor or Python IDE.
Write the following Python code:
import RPi.GPIO as GPIO # Import the GPIO library

Set up GPIO mode and warning
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)

Set up GPIO pin as an output
led_pin = 17 # Change this to the appropriate pin (17 for Raspberry Pi Zero)
GPIO.setup(led_pin, GPIO.OUT)

Turn on the LED
GPIO.output(led_pin, GPIO.HIGH)

Clean up GPIO settings
GPIO.cleanup()

Step 5: Run the Python Script
Save the Python script with a suitable name, such as “led_control.py.”
Transfer the script to your Raspberry Pi Zero or Pico.
For Raspberry Pi Zero:
Open a terminal on your Raspberry Pi Zero.
Navigate to the directory where you saved the script.
Run the script using the command:
python3 led_control.py

For Raspberry Pi Pico:
Open the Thonny IDE on your computer.
Open the script in Thonny.
Click the “Run” button to execute the script on the Raspberry Pi Pico.
Step 6: Witness the LED Glow!
Congratulations! You’ve successfully written and executed a Python script to turn on an LED using either the Raspberry Pi Zero or Raspberry Pi Pico. Take a moment to bask in the glow of your accomplishment and marvel at the magic of electronics and coding.

Conclusion
In this tutorial, you’ve learned how to set up a simple LED circuit and control it using a Raspberry Pi Zero or Raspberry Pi Pico. By combining your creativity with the power of Python programming, you can explore endless possibilities for exciting projects and innovations. Whether you’re a coding novice or an experienced maker, this guide has provided you with a solid foundation to build upon. Now, it’s time to let your imagination run wild and light up the world with your LED-powered creations!

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Posted in Computer coding, Raspberry Pi Projects
EDIT“ILLUMINATE YOUR PROJECTS: A STEP-BY-STEP GUIDE TO CONTROLLING LEDS WITH RASPBERRY PI ZERO, PICO, AND PYTHON”
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