#define BLYNK_TEMPLATE_NAME "lab vi task ii"
#define BLYNK_AUTH_TOKEN "BfgysbXX-rr6CC-JG2ushP5DFNKfalQ8"
#define BLYNK_TEMPLATE_ID "TMPL67fEV3-ce"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include <DHTesp.h>

#define DHTPIN 4
#define LED 5
#define buzzer 18

char auth[] = "BfgysbXX-rr6CC-JG2ushP5DFNKfalQ8";
char ssid[] = "YWokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

void setup() {
pinMode(LED_PIN, OUTPUT);
  Serial.begin(115200);
  dht.setup(DHTPIN, DHTesp::DHT22); // Initialize DHT sensor
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(2000L, sendDHTData); // Send DHT data every 2 seconds

  pinMode(LED, OUTPUT); // LED
  pinMode(buzzer, OUTPUT); // Buzzer
}

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

void getTemperatureAndHumidity() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  Blynk.virtualWrite(V0, t);
  Blynk.virtualWrite(V1, h);
  
  if (t < 15) {
    Blynk.logEvent("Environment is too cold");
  } else if (t > 45) {
    Blynk.logEvent("Environment is too hot");
  }
}

BLYNK_WRITE(V2) {
  int pinValue = param.asInt();
  digitalWrite(LED, pinValue);
}

BLYNK_WRITE(V3) {
  int pinValue = param.asInt();
  digitalWrite(buzzer, pinValue);
}