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

// PIN LED
int ledKamar_1 = 7;
int ledKamar_2 = 6;
int ledKamar_3 = 5;
int ledWarn = 4;

// PIN BUTTON
int btnKamar_1 = 12;
int btnKamar_2 = 11;
int btnKamar_3 = 10;

int btnstate1 = 0;
int btnstate2 = 0;
int btnstate3 = 0;

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(ledKamar_1, OUTPUT);
  pinMode(ledKamar_2, OUTPUT);
  pinMode(ledKamar_3, OUTPUT);
  pinMode(ledWarn, OUTPUT);
  pinMode(btnKamar_1, INPUT);
  pinMode(btnKamar_2, INPUT);
  pinMode(btnKamar_3, INPUT);
}

void loop() {
  btnstate1 = digitalRead(btnKamar_1);
  btnstate2 = digitalRead(btnKamar_2);
  btnstate3 = digitalRead(btnKamar_3);

  if (btnstate1 == HIGH) {
    digitalWrite(ledKamar_1, HIGH);
    delay(300);
    digitalWrite(ledKamar_1, LOW);
    delay(300);

    lcd.setCursor(5,0);
    lcd.print("KAMAR 1");
  }

}