Raspberry Pi GPIO tutorial How to make a LED blink

In this tutorial we'll learn how to control a LED using the GPIO and Python

Materials:

- Raspberry Pi with Raspbian or similar

- 2 pin LED

- 1K resistor

- 2 wires male/female

- Breadboard

The code to make the LED blink 3 times is:

import RPi.GPIO as GPIO
import time

LED_PIN = 11  # Set LED_PIN variable to 11

GPIO.setmode(GPIO.BOARD)  # Set GPIO mode to BOARD to use pin numbers
GPIO.setup(LED_PIN, GPIO.OUT)  # Prepare the LED pin to be used

for i in range(3):  # Turn ON and OFF the LED 3 times.
    GPIO.output(LED_PIN, GPIO.HIGH)  # Set LED pin on
    time.sleep(0.5)
    GPIO.output(LED_PIN, GPIO.LOW)  # Set LED pin off
    time.sleep(0.5)

GPIO.cleanup()  # Clear GPIO

Here we can see the circuit between the rPi and the LED:

Here you can see a video about how to assemble the circuit and run the code: