#define BLYNK_TEMPLATE_ID "TMPL6ds5TVtlW"
#define BLYNK_TEMPLATE_NAME "Peoject IoT"
#define BLYNK_AUTH_TOKEN "Ufz9EB0AzfhjK5Uy5RioDQie_tCjzCQC"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>

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

#define DHTPIN 4  // Pin dimana sensor DHT dihubungkan
#define DHTTYPE DHT22
#define LEDPIN 2
#define GASPIN 34

DHT dht(DHTPIN, DHTTYPE);

BlynkTimer timer;

void setup() {
  pinMode(LEDPIN, OUTPUT);
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  
  dht.begin();
  pinMode(GASPIN, INPUT);
  
  timer.setInterval(2000L, sendSensorData);
}

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

void sendSensorData() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  int gasValue = analogRead(GASPIN);

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Blynk.virtualWrite(V5, t);
  Blynk.virtualWrite(V6, h);
  Blynk.virtualWrite(V7, gasValue);
}

BLYNK_WRITE(V1) {
  int relayState = param.asInt();
  digitalWrite(LEDPIN, relayState);
}