#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <Servo.h> // Tambahkan pustaka Servo

#define DHTPIN 3        // Digital pin connected to the DHT sensor
#define DHTTYPE DHT22   // DHT 22  (AM2302)

DHT dht(DHTPIN, DHTTYPE);
Servo myservo; // Buat objek Servo

const int pirPin = 2;       // PIR sensor connected to digital pin 2
const int redLedPin = 4;    // Pin for the red LED
const int buzzerPin = 2;    // Pin for the buzzer
const int servoPin = 5;     // Pin for the servo

void setup() {
  pinMode(pirPin, INPUT);
  pinMode(redLedPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  
  myservo.attach(servoPin); // Attach servo to pin

  // Initialize the DHT sensor
  dht.begin();
}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  // Check if any reads failed and exit early (to try again).
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  // Check humidity
  if (humidity > 40) {
    digitalWrite(redLedPin, HIGH);  // Turn on the red LED
  } else {
    digitalWrite(redLedPin, HIGH);   // Turn off the red LED
  }

  // Check temperature
  if (temperature > 40) {
    // Sound the buzzer for half a second
    digitalWrite(redLedPin, HIGH);  // Turn on the red LED
    tone(buzzerPin, 1000); 
    delay(1000);
    noTone(buzzerPin);

    // Move the servo to a certain position
    myservo.write(90); // Example position, adjust as needed

    // Wait for another half a second
    delay(500);  
  } else {
    noTone(buzzerPin);     // Turn off the buzzer
    digitalWrite(redLedPin, LOW);   // Turn off the red LED

    // Move the servo to another position
    myservo.write(0); // Example position, adjust as needed
  }
}