#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define Type DHT22
int dhPin=2;
DHT DH(dhPin,Type);
float humidity;
float tempC;
float tempF;
int t=2000;

LiquidCrystal_I2C lcd(0x27,28,4);

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
DH.begin();
lcd.begin(20,4);
lcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:
humidity=DH.readHumidity();
tempC=DH.readTemperature();
tempF=DH.readTemperature(true);

Serial.print("Humidity ");
Serial.print(humidity);
Serial.print(" Temperature C ");
Serial.print(tempC);
Serial.print(" Temperature F ");
Serial.println(tempF);
Serial.println();
delay(t);

lcd.setCursor(0,0);
lcd.print("DHT Readings");

lcd.setCursor(0,1);
lcd.print("Humidity ");
lcd.print(humidity);

lcd.setCursor(0,2);
lcd.print("Temperature C ");
lcd.print(tempC);

lcd.setCursor(0,3);
lcd.print("Temperature F ");
lcd.print(tempF);
}