#define BLYNK_TEMPLATE_ID "TMPL3U1tyZ5Ro"
#define BLYNK_TEMPLATE_NAME "Chinmayi H K"
#define BLYNK_AUTH_TOKEN "0f8Q9-Pki4QO1-aix_bMGpAoxFkN_4gT"

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

#define DHTPIN 15
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

#define LED_PIN 22
#define SWITCH 25

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

BlynkTimer timer;

void blynkCode() {
  float t = dht.readTemperature();
  float h = dht.readHumidity();

  Blynk.virtualWrite(V0, t);
  Blynk.virtualWrite(V1, h); 

  int switch_in = digitalRead(SWITCH);
  if(switch_in == 1){
    Blynk.virtualWrite(V2, 1); 
    digitalWrite(LED_PIN, 1);
  } else {
    Blynk.virtualWrite(V2, 0); 
    digitalWrite(LED_PIN, 0);
  }

}

BLYNK_WRITE(V2) {
  int ledState = param.asInt(); 
  digitalWrite(LED_PIN, ledState);
  Serial.println("LED Status changed");
  }

void setup() {
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  dht.begin();

  pinMode(LED_PIN, OUTPUT);  
  digitalWrite(LED_PIN, LOW); 
  pinMode(SWITCH, INPUT_PULLUP);

  timer.setInterval(2000L, blynkCode);
}

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