import time
import board
import adafruit_hcsr04

# Set the sensor pins
sonar = adafruit_hcsr04.HCSR04(trigger_pin=board.TRIG, echo_pin=board.ECHO)

while True:
    try:
        print(f"{sonar.distance:.2f}")

    except RuntimeError:
        print("Retrying!")
        time.sleep(0.1)