from hcsr04 import HCSR04
from utime import sleep, sleep_us
from machine import SoftI2C, Pin, time_pulse_us
import oled

#i2c & oled
i2c = SoftI2C(scl=Pin(22), sda=Pin(21))
oled = oled.I2C(128, 64, i2c)

# Ultrasonic sensor
ultrasonic_sensor = HCSR04(trigger_pin=5, echo_pin=18)

while True:
        distance = ultrasonic_sensor.get_distance_cm()

        oled.clear()
        oled.text('Distance: ' + str(distance), 10, 3)
        oled.show()

        sleep(0.1)