#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

int LK1=4;
int LK2=3;
int LK3=2;
int BK1=7;
int BK2=6;
int BK3=5;
int LDAR=8;
int buttonsatu=0;
int buttonduaa=0;
int buttontiga=0;


void setup() {
  pinMode(LK1, OUTPUT);
  pinMode(LK2, OUTPUT);
  pinMode(LK3, OUTPUT);
  pinMode(LDAR, OUTPUT);
  pinMode(BK1,INPUT);
  pinMode(BK2,INPUT);
  pinMode(BK3,INPUT);

  lcd.init();
  lcd.backlight();

}

void loop() 
{
  buttonsatu = digitalRead(BK1);
  buttonduaa = digitalRead(BK2);
  buttontiga = digitalRead(BK3);


    if (buttonsatu==HIGH)
  {
    digitalWrite(LK1, HIGH);
    digitalWrite(LK2, LOW);
    digitalWrite(LK3, LOW);
    digitalWrite(LDAR, HIGH);

    lcd.setCursor(4,0);
    lcd.print("KAMAR 1");
    delay(800);
    lcd.clear();

    lcd.setCursor(3,1);
    lcd.print("DARURAT!!");
    delay(800);
    lcd.clear();
  }
     else
    {
      digitalWrite(LK2, LOW);
      digitalWrite(LK3, LOW);
      digitalWrite(LDAR, LOW);
    }
    if (buttonduaa==HIGH)
  {
    digitalWrite(LK1, LOW);
    digitalWrite(LK2, HIGH);
    digitalWrite(LK3, LOW);
    digitalWrite(LDAR, HIGH);

    lcd.setCursor(4,0);
    lcd.print("KAMAR 2");
    delay(800);
    lcd.clear();

    lcd.setCursor(3,1);
    lcd.print("DARURAT!!");
    delay(800);
    lcd.clear();
  }
     else
    {
      digitalWrite(LK1, LOW);
      digitalWrite(LK3, LOW);
      digitalWrite(LDAR, LOW);
    }
    if (buttontiga==HIGH)
  {
    digitalWrite(LK1, LOW);
    digitalWrite(LK2, LOW);
    digitalWrite(LK3, HIGH);
    digitalWrite(LDAR, HIGH);

    lcd.setCursor(4,0);
    lcd.print("KAMAR 3");
    delay(800);
    lcd.clear();

    lcd.setCursor(3,1);
    lcd.print("DARURAT!!");
    delay(800);
    lcd.clear();
  }
     else
    {
      digitalWrite(LK1, LOW);
      digitalWrite(LK2, LOW);
      digitalWrite(LDAR, LOW);
    }

}