Python Blink Tutorial

blink.py

#import the GPIO Library
import RPi.GPIO as GPIO
import time
# blinking function

def blink(pin):
#Setting the LED to turn on 
	GPIO.output(pin,GPIO.HIGH)
	time.sleep(1)
	#Setting the LED to turn off
	GPIO.output(pin,GPIO.LOW)
	time.sleep(1)
	return

# to use Raspberry Pi board pin numbers
GPIO.setmode(GPIO.BOARD)
# set up GPIO output channel
GPIO.setup(15, GPIO.OUT)
# blink GPIO17 2 times
for i in range(0,2):
	blink(15)
GPIO.cleanup()