#include <DHT.h>
#define DHTPIN 7     // what pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302)
DHT dht(DHTPIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino
//Variables
int chk;
float hum;  //Stores humidity value
float temp; //Stores temperature value

// Add lcd
LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup()
{
  Serial.begin(9600);
  dht.begin();
}
{
  lcd.init();
  lcd.backlight();
  lcd.print("led");
}

void loop()
{
    delay(2000);
    //Read data and store it to variables hum and temp
    hum = dht.readHumidity();
    temp= dht.readTemperature();
    //Print temp and humidity values to serial monitor
    Serial.print("Humidity: ");
    Serial.print(hum);
    Serial.print(" %, Temp: ");
    Serial.print(temp);
    Serial.println(" Celsius");
    delay(10000); //Delay 2 sec.
}