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.

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.

      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)

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

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