#include<DHT.h>  // including the library of DHT11 temperature and humidity sensor
#define DHTTYPE DHT22   // type of using sensor
#include <LiquidCrystal_I2C.h>
int lcdRows = 2;
int lcdColumns = 16;
#define dht_dpin 4 // Digital pin connected to the DHT sensor
LiquidCrystal_I2C lcd(0x27, lcdRows, lcdColumns );  
DHT dht(dht_dpin, DHTTYPE); // Initialize DHT sensor
void setup() // the setup function runs once when you press reset or power the board
{ 
  dht.begin(); // sketch begins by including the DHT library
  Serial.begin(115200); // establishes serial communication between your Arduino board and another device.
  lcd.init();                 
  lcd.backlight();
  }
void loop() {
    float t = dht.readTemperature();    // Variable 't' is assigned to read the data from DHT11     
    Serial.print("Tem= ");
    Serial.print(t);  // Prints ‘t’ data to the serial port
    Serial.println("C  "); // Prints ”C”  to the serial port
    lcd.setCursor(0, 0);
    lcd.print("Tem = ");
    lcd.print(t);  // Prints ‘t’ data to the serial port
    lcd.print(" C"); // Prints ”C”  to the serial port
    float h = dht.readHumidity();    // Variable 't' is assigned to read the data from DHT11     
    Serial.print("Hum = ");
    Serial.print(h);  // Prints ‘t’ data to the serial port
    Serial.println("%  "); // Prints ”C”  to the serial port
    lcd.setCursor(0, 1);
    lcd.print("Hum = ");
    lcd.print(h);  // Prints ‘t’ data to the serial port
    lcd.print("%");
    delay(10); // delay 800 milliseconds   
}