from machine import Pin,PWM
from time import sleep
buz_Pin = 14
but_Pin = 13
buz = PWM(Pin(buz_Pin))
# buz.freq(1000)
buz.duty(0) 
but = Pin(but_Pin,Pin.IN)
while True:
    if but.value() == 1:
        buz.duty(0)
    else:
        buz.duty(500)