from machine import Pin
import utime
trigger = Pin(3,Pin.OUT)
echo = Pin(2,Pin.IN)
def ultra ():
  trigger.low()
  utime.sleep_us(2)
  trigger.high()
  utime.sleep_us(5)
  trigger.low()
  while echo.value() == 0:
      signaloff = utime.tricks_us()
  while echo.value()  == 1:
      signalon= utime.tricks_us()
      timepassed = signalon -signaloff
      distance = (timepassed * 0.0330) / 2
      print("görüldüğü",distance,"cm")
  while True:
      ultra()
      ultime.sleep(2)