from machine import Pin
from utime import sleep_us,ticks_us

Trig=Pin(2,Pin.OUT)
Echo=Pin(3,Pin.IN)

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

while True:
    ultra()
    sleep_us(1)