from machine import Pin, time_pulse_us
import time

trig = Pin(23, Pin.OUT)
echo = Pin(24, Pin.IN)

def get_distance():
    trig.low()
    time.sleep_us(2)

    trig.high()
    time.sleep_us(10)
    trig.low()

    duration = time_pulse_us(echo, 1)
    distance = (duration * 0.0343) / 2
    return distance

while True:
    d = get_distance()
    print("Distance:", d, "cm")
    time.sleep(1)