//LiquidCrystal displays (LCDs)
#include <LiquidCrystal.h>

#include "DHT.h"
#define DHTPIN 2     
#define DHTTYPE DHT22 
#define CELSIUS_DEGREES

DHT dht(DHTPIN, DHTTYPE);

int rs = 12;
int enable=11;
int d4=10;
int d5=9;
int d6=8;
int d7=13;

LiquidCrystal lcd(rs,enable,d4,d5,d6,d7);

void setup() {
  Serial.begin(9600);

  dht.begin();

  delay(1000);
  //lcd.begin(cols, rows)
  lcd.begin(16,2);
}

void loop() {
  // put your main code here, to run repeatedly:
   // put your main code here, to run repeatedly:
  delay(2000);
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  //by setting the following argument to true, we can get
  //fahrenheit values
  float f = dht.readTemperature(true);

  //test whether the values from DHT sensor can be read, and if not
  //display to screen that it cannot read values from sensor
  if(isnan(h)||isnan(t)||isnan(f)){
    Serial.println("Fail to read values from DHT sensor");
  }

  //compute and return heat index in fahrenheit. Heat index measures
  //how hot it feels according to both humidity and temperature
  float heatInFahrenheit = dht.computeHeatIndex(f,h);

  //compute and return heat index in celsius. Heat index measures
  //how hot it feels according to both humidity and temperature
  float heatInCelsius = dht.computeHeatIndex(t,h,false);

  lcd.setCursor(0,0);
  lcd.print(h);
  lcd.print("%");
  lcd.setCursor(0,1);
  lcd.print(t);
  lcd.print("*C");
  lcd.setCursor(8,0);
  lcd.print(heatInCelsius);
  lcd.print("*C");

}