import serial
import time

arduino = serial.Serial('COM3', 9600)
time.sleep(2)

print arduino.readline()
print ("Enter '1' to turn 'on' the LED and '0' to turn LED 'off'")

while 1:

    var = raw_input()
    print "You Entered :", var

    if(var == '1'):
        arduino.write('1')
        print("LED turned on")
        time.sleep(1)

    if(var == '0'):
        arduino.write('0')
        print("LED turned off")