import RPi.GPIO as GPIO
import time

# blinking function
def blink(pin):
	GPIO.output(pin,GPIO.HIGH)
	time.sleep(1)
	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(11, GPIO.OUT)
# blink GPIO17 50 times
for i in range(0,50):
        blink(11)


# contoh membaca GPIO
if ( GPIO.input(11) ):
	print("hello GPIO INPUT")


GPIO.cleanup() 