#define BLYNK_TEMPLATE_ID "TMPL6N1O24e4K"
#define BLYNK_TEMPLATE_NAME "ESP32 With Led Buzzer and Sensor"
#define BLYNK_AUTH_TOKEN "SuWheJ2Psz0BZe76v_e59tTNuY9qwp8c"

#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>

// WiFi credentials
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

#define DHTPIN 16     // Pin data DHT22 terhubung ke pin 
#define DHTTYPE DHT22   // Tipe sensor DHT22

DHT dht(DHTPIN, DHTTYPE);

int blueLEDPin = 12;   // Pin untuk LED biru
int redLEDPin = 13;    // Pin untuk LED merah
int buzzerPin = 18;   // Pin untuk buzzer

BlynkTimer timer;

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);

  dht.begin();

  pinMode(blueLEDPin, OUTPUT);
  pinMode(redLEDPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  timer.setInterval(100L, sendSensorData);  // Mengirim data sensor setiap

  // Inisialisasi status awal untuk widget LED dan label
  Blynk.virtualWrite(V4, 0); // Matikan LED biru di Blynk Cloud
  Blynk.virtualWrite(V5, "Buzzer: OFF"); // Menampilkan status buzzer di Blynk Cloud
  Blynk.virtualWrite(V3, 0); // Matikan LED merah di Blynk Cloud
}

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

void sendSensorData()
{
  float temperature = dht.readTemperature();  // Baca suhu
  float humidity = dht.readHumidity();        // Baca kelembaban

  Blynk.virtualWrite(V1, temperature);  // Kirim suhu ke pin virtual V1
  Blynk.virtualWrite(V2, humidity);     // Kirim kelembaban ke pin virtual V2

  // Mengatur LED dan buzzer berdasarkan kondisi suhu dan kelembaban
  if (temperature < -10 && humidity < 30) {
    digitalWrite(blueLEDPin, HIGH);
    Blynk.virtualWrite(V4, 255); // Mengatur LED biru di Blynk Cloud
    Blynk.virtualWrite(V5, "Buzzer: ON"); // Menampilkan status buzzer di Blynk Cloud
    digitalWrite(buzzerPin, HIGH);
    digitalWrite(redLEDPin, LOW);
  } else if (temperature > 60 && humidity > 80) {
    digitalWrite(redLEDPin, HIGH);
    Blynk.virtualWrite(V3, 255); // Mengatur LED merah di Blynk Cloud
    Blynk.virtualWrite(V5, "Buzzer: ON"); // Menampilkan status buzzer di Blynk Cloud
    digitalWrite(buzzerPin, HIGH);
    digitalWrite(blueLEDPin, LOW);
  } else {
    digitalWrite(blueLEDPin, LOW);
    Blynk.virtualWrite(V4, 0); // Matikan LED biru di Blynk Cloud
    Blynk.virtualWrite(V3, 0); // Matikan LED merah di Blynk Cloud
    Blynk.virtualWrite(V5, "Buzzer: OFF"); // Menampilkan status buzzer di Blynk Cloud
    digitalWrite(buzzerPin, LOW);
    digitalWrite(redLEDPin, LOW);
  }
}