print("This program will integrate esp32 witj ultrasonic sensor")

#import necessary modules/libraries
import hcsr04
from utime import sleep

#create an object called ultrasonic_sensor using oop(object oriented prigramming)
#oop format is --> library name.class name(.....)
ultrasonic_sensor = hcsr04.HCSR04(trigger_pin=13, echo_pin=27, echo_timeout_us=500*2*30)

while True:

    #lets test our ultrasonic sensor
    distance_in_cm = ultrasonic_sensor.distance_cm()
    distance_in_mm = ultrasonic_sensor.distance_mm()

    #display distance value on serial monitor
    print('anobject is detected in: ',distance_in_cm, 'cm')
    print('anobject is detected in: ',distance_in_mm, 'mm')
    print('----------------------------------------------------------')
    print('\n')

    sleep(0.5)