#define BLYNK_TEMPLATE_ID "TMPL6Q2b6yaYM"
#define BLYNK_TEMPLATE_NAME "control lamp"
#define BLYNK_AUTH_TOKEN "SdN8dpElP7sXjSwF9NE-aUlM4ZfEELB9"

#define BLYNK_PRINT Serial

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

// DHT22 settings
#define DHTPIN 12     // Pin connected to the DHT22 sensor
#define DHTTYPE DHT22 // DHT22 sensor type
DHT dht(DHTPIN, DHTTYPE);

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

// Function to control lamp
BLYNK_WRITE(V1)
{
  int value = param.asInt();
  digitalWrite(15, value);
}

BLYNK_WRITE(V2)
{
  int value = param.asInt();
  digitalWrite(2, value);
}

BLYNK_WRITE(V3)
{
  int value = param.asInt();
  digitalWrite(4, value);
}

void setup()
{
  // Debug console
  Serial.begin(115200);

  pinMode(15, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);

  // Initialize DHT sensor
  dht.begin();

  // Connect to Blynk
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}

void loop()
{
  Blynk.run();

  // Read temperature and humidity from DHT22
  float h = dht.readHumidity();
  float t = dht.readTemperature();

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

  // Send temperature to Virtual Pin V5
  Blynk.virtualWrite(V5, t);

  // Send humidity to Virtual Pin V4
  Blynk.virtualWrite(V4, h);

  // Debugging info
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print("°C, Humidity: ");
  Serial.print(h);
  Serial.println("%");

  delay(2000); // Update readings every 2 seconds
}