#include <LiquidCrystal.h>
#include <DHT.h>
#include <OneWire.h>
#include <DallasTemperature.h>

#define LED 1
#define RED_PIN 2
#define GREEN_PIN 3
#define BLUE_PIN 4
#define BUZZER_PIN1 6
#define BUZZER_PIN2 5
#define DHT_PIN 7
#define DHT_TYPE DHT22
#define DS18B20_PIN 27

DHT dht(DHT_PIN, DHT_TYPE);
OneWire oneWire(DS18B20_PIN);
DallasTemperature sensors(&oneWire);

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
bool isLedOn = false;

void setup() {
  lcd.begin(16, 2);
  lcd.print("HELLO!");

  pinMode(LED, OUTPUT);
  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);
  pinMode(BUZZER_PIN1, OUTPUT);
  pinMode(BUZZER_PIN2, OUTPUT);

  dht.begin();
  sensors.begin();
}

void playTone(int frequency, int duration) {
  tone(BUZZER_PIN1, frequency, duration);
  tone(BUZZER_PIN2, frequency, duration);
  delay(duration);
}

void loop() {
  // Membaca suhu dari sensor DHT22
  float temperatureDHT = dht.readTemperature();

  // Membaca suhu dari sensor DS18B20
  sensors.requestTemperatures();
  float temperatureDS18B20 = sensors.getTempCByIndex(0);

  if (temperatureDHT > 30.0 || temperatureDS18B20 > 30.0) {
    if (!isLedOn) {
      // Menyalakan LED merah
      digitalWrite(RED_PIN, HIGH);  // Merah ON
      digitalWrite(GREEN_PIN, LOW); // Hijau OFF
      digitalWrite(BLUE_PIN, LOW);  // Biru OFF
      playTone(1000, 1000); // Buzzer berbunyi
      lcd.setCursor(0, 0);
      lcd.print("Red   ");
      lcd.setCursor(0, 1);
      lcd.print("LED ON");
      isLedOn = true;
    }
  } else {
    // Mematikan LED merah dan buzzer
    digitalWrite(RED_PIN, LOW);  // Merah OFF
    noTone(BUZZER_PIN1);
    noTone(BUZZER_PIN2);
    lcd.setCursor(0, 0);
    lcd.print("        ");
    lcd.setCursor(0, 1);
    lcd.print("LED OFF");
    isLedOn = false;
  }

  delay(5000);
}