#include<LiquidCrystal_I2C.h>

#define echo 2
#define trig 3
long duration, distance;
LiquidCrystal_I2C ITO(0x27, 16, 2);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  ITO.init();
  ITO.backlight();
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(trig, LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
  duration = pulseIn(echo, HIGH);

  distance = duration/58.2;

  Serial.print("Jarak : ");
  Serial.print(distance);
  Serial.println("cm");
  

  ITO.setCursor(0, 0);
  ITO.print("Jarak : ");
  ITO.print(distance);
  ITO.println("cm");

  delay(100);

  digitalWrite(12, LOW);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);

  if(distance > 15){
    digitalWrite(12, HIGH);
  } else if(distance >= 5 && distance <= 15){
    digitalWrite(11, HIGH);
  } else if (distance < 5){
    digitalWrite(10, HIGH);
  }

}