from machine import Pin
from utime import sleep


button=Pin(14,mode=Pin.IN,pull=Pin.PULL_UP)
led=Pin(14,Pin.OUT)

while True:
    if button.value()==0:
        led.value(1)
        sleep(0.5)
    elif button.value()==1:
        led.value(0)
        sleep(0.5)