#define BLYNK_TEMPLATE_ID "TMPL6GUIOTj2P"
#define BLYNK_TEMPLATE_NAME "Kipas"
#define BLYNK_AUTH_TOKEN "fS52K2nidMLRYs_QG0hbGOBoNnVM0ljg"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <ESP32Servo.h>

#define DHTPIN 4          // Pin yang terhubung dengan DHT22
#define DHTTYPE DHT22     // Tipe DHT
#define BUZZER 12 // Pin Buzzer
Servo myservo;

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2); 
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";


// Blynk Virtual Pin
#define VPIN_TEMP V0

void setup()
{
  Serial.begin(115200);
  dht.begin();
  myservo.attach(15);     // Pin yang terhubung dengan servo
  // Inisialisasi LCD
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Suhu: ");
  lcd.setCursor(0, 1);
  lcd.print("Kipas: OFF");

  // Hubungkan ke WiFi
  Blynk.begin(auth, ssid, pass);
}

void loop()
{
  Blynk.run();
  readTemperature();
}

void readTemperature()
{
  // Baca suhu dan kelembaban dari DHT22
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Kirim suhu ke Blynk
  Blynk.virtualWrite(VPIN_TEMP, t);
  
  // Kontrol kipas berdasarkan suhu
  if (t > 30.0) {
    myservo.write(90); // Nyalakan kipas
    delay(2000);
    lcd.setCursor(7, 1);
    lcd.print("ON ");

    // Pengaturan frekuensi suara Buzzer
    tone(BUZZER, 300);
    delay(300);
    tone(BUZZER, 500);
    delay(300);
    tone(BUZZER, 300);
    delay(300);
    tone(BUZZER, 200);
    noTone(BUZZER);
  } else {
    myservo.write(0); // Matikan kipas
    delay(2000);
    lcd.setCursor(7, 1);
    lcd.print("OFF");
  }
  
  // Update tampilan LCD
  lcd.setCursor(6, 0);
  lcd.print(t);
  lcd.print(" C ");
  
  // Debugging di Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" *C, Humidity: ");
  Serial.print(h);
  Serial.println(" %");
  
  // Tunggu beberapa detik sebelum pembacaan berikutnya
  
  delay(500);
}