#define BLYNK_TEMPLATE_ID "TMPL3RNDGyASh"
#define BLYNK_TEMPLATE_NAME "LEDcontrol"
#define BLYNK_AUTH_TOKEN "54b_Tm-h7YU8BhEE_mxB1b8HmmBWdG7g"

#include <LiquidCrystal.h>
#include "DHT.h"
#define DHTPIN 13
#define DHTTYPE DHT22
/* Display */
LiquidCrystal lcd(21, 19, 18, 5, 4, 2);
DHT dht(DHTPIN, DHTTYPE);

// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial

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

char auth[] = BLYNK_AUTH_TOKEN;

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

BlynkTimer timer;
float h, t, f;

void setup()
{
  Serial.begin(115200);
  lcd.begin(16, 2);
  lcd.clear();
  Serial.begin(115200);
  Serial.println(F("DHT22 test!"));

  dht.begin();
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, myTimerEvent);
  
}

void loop()
{
  Blynk.run();
  timer.run(); // Initiates BlynkTimer
  h = dht.readHumidity();
  t = dht.readTemperature();
  f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  float hif = dht.computeHeatIndex(f, h);
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F  Heat index: "));
  Serial.print(hic);
  Serial.print(F("°C "));
  Serial.print(hif);
  Serial.println(F("°F"));
  lcd.setCursor(0, 0);
  lcd.print("Humidity-      %");
  lcd.setCursor(9, 0);
  lcd.print(h,2);
  lcd.setCursor(0, 1);
  lcd.print("Temp-       C");
  lcd.setCursor(11, 1);
  lcd.print("\337C");
  lcd.setCursor(5, 1);
  lcd.print(t,2);

  delay(500);
}
void myTimerEvent()
{
  Blynk.virtualWrite(V2, h);
  Blynk.virtualWrite(V3, t);
}