import machine
from machine import Pin
import time
Trigger=Pin(23,Pin.OUT)
Echo=Pin(22,Pin.IN)
while True:
Trigger.value(0)
time.sleep_us(2)
Trigger.value(1)
time.sleep_us(10)
Trigger.value(0)
totaltime=machine.time_pulse_us(Echo,1)
distance=(totaltime*0.034)/2
print(distance)
time.sleep(2)