import RPi.GPIO as GPIO
from time import sleep


GPIO.setmode(GPIO.BCM)
GPIO.setup(14, GPIO.OUT)


while True:
    GPIO.output(14, GPIO.HIGH)
    a = GPIO.input(14)
    print (a)

    sleep(1)
    GPIO.output(14, GPIO.LOW)
    a = GPIO.input(14)
    print (a)
    sleep(1)