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()
  trigger.low()
  
  while echo.value() == 0:
    signaloff=utime.ticks_us()
  
  while echo.value() == 1:
    signalon=utime.ticks_us()
  
  timepassed = signalon - signaloff
  distance = (timepassed * 0.0330) / 2
  print("The Distance from object is:",distance,"cm")

while True:
  ultra()
  utime.sleep(1)