#include <LiquidCrystal.h>

// Inisialisasi pin LCD
const int rs = 7, en = 8, d4 = 9, d5 = 10, d6 = 11, d7 = 12;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

const int pirPin = 2; // PIR sensor pin
const int ledPin = 3; // LED pin
const int buzzerPin = 4; // Buzzer pin

void setup() {
  pinMode(pirPin, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  lcd.begin(16, 2); // Inisialisasi LCD dengan 16 kolom dan 2 baris
  lcd.print("Sistem Keamanan");
  lcd.setCursor(0, 1);
  lcd.print("Mengaktifkan...");
  delay(2000);
  lcd.clear();
}

void loop() {
  int pirState = digitalRead(pirPin);

  if (pirState == HIGH) {
    digitalWrite(ledPin, HIGH);
    digitalWrite(buzzerPin, HIGH);
    lcd.setCursor(0, 0);
    lcd.print("Peringatan!      ");
    lcd.setCursor(0, 1);
    lcd.print("Maling terdeteksi");
  } else {
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzerPin, LOW);
    lcd.setCursor(0, 0);
    lcd.print("Sistem Aman      ");
    lcd.setCursor(0, 1);
    lcd.print("Tidak ada gerakan");
  }

  delay(500);
}