from machine import Pin
import utime 
from time import sleep

trigger = Pin(15, Pin.OUT)
echo = Pin(14, Pin.IN)

    
while True:
    trigger.low()
    sleep(0.2)
    trigger.high()
    sleep(0.5)
    trigger.low()
    while echo.value() == 0:
        signaloff = utime.ticks_us()
    while echo.value() == 1:
        signalon = utime.ticks_us()
    timepassed = signalon - signaloff
    distance = (timepassed * 0.0343) / 2
    print("The distance from object is ",distance,"cm")
    sleep(0.1)