Raspberry Pi GPIO exercise - blink LED 5 times

blink-led-5-times.py

import RPi.GPIO as g
import time
from subprocess import call

call('clear')

# set the board
g.setmode(g.BOARD)

# set up PIN 12 for output
g.setup(12,g.OUT)

# switch off LED
#g.output(12,0)

print "Ok, I will make the LED blink 5 times"
time.sleep(3)

for i in range(0,5):
        print "switching on"
        # switch on LED
        g.output(12,1)

        # time out after 1 seconds
        time.sleep(0.5)

        print "switching off"
        # switch off LED
        g.output(12,0)

        # time out after 1 seconds
        time.sleep(0.5)

print "Done!"

# set the GPIO pins back to normal
g.cleanup()