Introduction: Blinking a LED With Raspberry Pi

By Prayag Nao

Today i am going to post how to blink a led with raspberry pi. Blinking a LED is a beginner task and simple task.

components required:

  • Raspberry pi.
  • 2 Male to female connectors.
  • A 330 omh resistance.
  • A LED.
  • A breadboard.

Step 1: Procedure

Here is pin diagram of Raspberry pi 2.

  • Connect 11th pin to one end of resistance.
  • Connect ground pin to -ev pin of LED.
  • Now connect remaining end of resistance to +ev of LED.
  • Now turn on Raspberry pi.
  • open text editor and paste following program into it.

Step 2: Programming

import GPIO.RPi as GPIO ##import GPIO library

import time

GPIO.setmode(GPIO.BOARD) ##use board pin numbering

GPIO.setup(11,GPIO.OUT) ##set 11th pin as output pin

while 1:

GPIO.output(11,1) ## Turn on led

time.sleep(1) ## 1 second delay

GPIO.output(11,0) ## Turn off led

time.sleep(1)

Step 3: Finalize

  • Save above program as blink.py.
  • Now run above program as root user and you will see blinking led.