int led1=13; int led2=5; int led3=2; int led4=3;
int button1=12; int button2=8; int button3=4;
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() 
{
  Serial.begin(9600);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  pinMode(button3, INPUT);
  lcd.init();
  lcd.backlight();
}
void loop() {
  if (digitalRead(button1)==HIGH)
  {
    digitalWrite(led1, HIGH);
    digitalWrite(led4, HIGH);
    lcd.setCursor (5,0);
    lcd.print("KAMAR 1");
    delay(500);
    lcd.clear();
    lcd.setCursor (5,1);
    lcd.print("DARURAT!!");
    delay(500);
    lcd.clear();
  }
  if (digitalRead(button2)==HIGH)
  {
    digitalWrite(led2, HIGH);
    digitalWrite(led4, HIGH);
    lcd.setCursor (5,0);
    lcd.print("KAMAR 2");
    delay(500);
    lcd.clear();
    lcd.setCursor (5,1);
    lcd.print("DARURAT!!");
    delay(500);
    lcd.clear();
  }
  if (digitalRead(button3)==HIGH)
  {
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    lcd.setCursor (5,0);
    lcd.print("KAMAR 3");
    delay(500);
    lcd.clear();
    lcd.setCursor (5,1);
    lcd.print("DARURAT!!");
    delay(500);
    lcd.clear();
  }
  else
  {
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
  }
  }