#define BLYNK_TEMPLATE_ID "TMPL6MHVQ4Qox"
#define BLYNK_TEMPLATE_NAME "IOT HOME AUTOMATION"
#define BLYNK_AUTH_TOKEN "YKZntyR4L9_XsfZDu5KhzJixGF8YRocT"

#define BLYNK_PRINT Serial 
 
#include <WiFi.h> 
#include <Wire.h> 
#include <LiquidCrystal_I2C.h> 
#include <WiFiClient.h> 
#include <BlynkSimpleEsp32.h> 
 
char auth[] = BLYNK_AUTH_TOKEN; 
 
// Your WiFi credentials. 
// Set password to "" for open networks. 
char ssid[] = "Wokwi-GUEST"; 
char pass[] = ""; 
 
BlynkTimer timer; 
 
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2); 
#include "DHT.h" 
 
#define DHTPIN 27      
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321 
 
DHT dht(DHTPIN, DHTTYPE); 
 
void sendSensor(){ 
float temperature = dht.readTemperature(); 
float humidity = dht.readHumidity(); 
 
  // Check if any reads failed and exit early (to try again). 
  if (isnan(temperature) || isnan(humidity)) { 
    Serial.println(F("Failed to read from DHT sensor!")); 
    return; 
  } 
 
  Serial.print(F("Humidity: ")); 
  Serial.print(humidity); 
  Serial.print(F("%  Temperature: ")); 
  Serial.print(temperature); 
  Serial.println(F("°C ")); 
 
  
    LCD.clear(); 
    LCD.setCursor(0, 0); 
    LCD.print("Humid: "); 
    LCD.print(humidity); 
    LCD.print(" % "); 
    LCD.setCursor(0, 1); 
    LCD.print("Temp: "); 
    LCD.print(temperature); 
    LCD.print(" C"); 
 
    Blynk.virtualWrite(V1, temperature); 
    Blynk.virtualWrite(V2, humidity); 
} 
 
void setup() { 
  // put your setup code here, to run once: 
 
pinMode(5,OUTPUT); 
pinMode(12,OUTPUT); 
 
dht.begin(); 
 
Serial.begin(115200); 
 
LCD.init(); 
LCD.backlight(); 
LCD.setCursor(0, 0); 
LCD.print("IOT HOME"); 
LCD.setCursor(3, 1); 
LCD.print("SOLUTION"); 
delay (4000); 
LCD.clear(); 
 
Blynk.begin(auth, ssid, pass); 
  // You can also specify server: 
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80); 
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080); 
 
  // Setup a function to be called every second 
timer.setInterval(1000L, sendSensor); 
} 
 
void loop() { 
  Blynk.run(); 
  timer.run(); 
}