print("This program is to make ultrasonic working")
print("By: Danial Hafiz")
print("Date: 22/4/2024")

#import library
import ultrasonic_lib
from machine import Pin
from utime import sleep

#pin declarartion
TRIG = Pin (13)
ECHO = Pin (12)
Buzzer = Pin (4), Pin_out

#parameter declaration

#Create object name for sensor with library --> Object _Name = Library_name.Class_name(......)
sonic = ultrasonic_lib.HCSR04(trigger_pin=TRIG, echo_pin=ECHO)

#main program
while True:
  jarak_dalam_cm = sonic.distance_cm()
  jarak_dalam_cm = sonic.distance_mm()

  print("Distance from an object is", jarak_dalam_cm, "cm")
  print("Distance from an object is", jarak_dalam_cm, "mm")
  print ("\n")

  if jarak_dalam_cm > 200:
    for i in range (3):
      Buzzer.init (freq=500, duty=50)
      sleep (1)
      Buzzer.init (freq=500, duty=0)
      sleep (1)

  elif 50 <= jarak_dalam_cm <= 200:
    for i in range (5):
      Buzzer.init (freq=1000, duty=80)
      Sleep (1)
      Buzzer.init (freq=1500, duty=0)
      sleep (1)

  else:
    

  sleep(2)