from machine import Pin
import utime
Trig=Pin(3,Pin.OUT)
Echo=Pin(2,Pin.IN)

def ultra():
    Trig.low()
    utime.sleep_us(2)
    Trig.high()
    utime.sleep_us(5)
    Trig.low()
    while Echo.value() == 0:
        signal_off = utime.ticks_us()
    while Echo.value() == 1:
        signal_on = utime.ticks_us()
    timepassed = signal_on - signal_off
    distance = (timepassed * 0.034)/2
    print("The distance form object is ", distance, "cm")
while True:
    ultra()
    utime.sleep(1)