from machine import Pin, time_pulse_us
import time

TRIG_PIN = 16
ECHO_PIN = 27

trig = Pin(TRIG_PIN, Pin.OUT)
echo = Pin(ECHO_PIN, Pin.IN)

def get_distance():
    trig.value(0)
    time.sleep_us(2)

    trig.value(1)
    time.sleep_us(10)
    trig.value(0)

    duration = time_pulse_us(echo, 1, 30000)

    distance = (duration * 0.0343) / 2

    return distance

while True:
    distance = get_distance()

    print("Distance:", round(distance, 1))

    time.sleep(0.5)