#include <DHT.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  dht.begin();

  lcd.init();
  lcd.backlight();
  lcd.setCursor(5, 0);
  lcd.print("DHT SENSOR");
  
}

void loop() {
  delay(2000);
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.readTemperature(true);
  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);

  lcd.setCursor(1, 1);
  lcd.print("Hum");
  lcd.print(h);
  lcd.print("%");
  lcd.setCursor(1, 2);
  lcd.print("Temp");
  lcd.print(t);
  lcd.print("C ");
  lcd.print(f);
  lcd.print("F");
  lcd.setCursor(1, 3);
  lcd.print("Heat");
  lcd.print(hic);
  lcd.print("C ");
  lcd.print(hif);
  lcd.println("F");
  lcd.setCursor(0, 0);
}