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.ticks_us()
        while echo.value()==1:
                signalon=utime.ticks_us()
        timpassed=signalon-signaloff
        distance=(timpassed*0.0330)/2
        print("The Distance from object is",distance,"cm")
while True:
    ultra()
    utime.sleep(1)