from machine input Pin
from time input sleep
sensor= Pin(34,Pin.IN)
buzzer= Pin(2,Pin.OUT)
led= Pin (21,Pin.OUT)
while True:
  if(sensor.value()==1):
    buzzer.ON()
    led.value(1)
    print("Object DEtected") 
  else:
    buzzer.OFF()
    led.value(0)
    print("path is clear")
    sleep(0.5)