print("THis program integrates ESP32 with ultrasonic sensor")

#import all necessary module
import hcsr04   #sensor library
from utime import sleep

#declare ultrasonic pin connection
#create object called ultrasonic_sensor using OOP(Object Oriented Programming)
#OOP format is ---> library name.class name(trigger_pin, echo_pin, echo_timeout_us=500*2*30))
ultrasonic_sensor = hcsr04.HCSR04(trigger_pin=12, echo_pin=14, echo_timeout_us=500*2*30)


while True:
    #test the sensor
    object_detect_cm = ultrasonic_sensor.distance_cm() #decimal number
    object_detect_mm = ultrasonic_sensor.distance_mm() #round number

    #display object on monitor
    print("Distance form an onject in cm", object_detect_cm)
    print("Distance form an onject in mm", object_detect_mm)
    print('------------------------------------------------')
    print('\n')

    sleep(5)