#include "DHT.h"
#include <LiquidCrystal_I2C.h>
#define DHTPIN 13     
#define DHTTYPE DHT22   
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27,20,4);
void setup() {
  Serial.begin(9600);
  Serial.println(F("DHTxx test!"));
  dht.begin();
  lcd.init();
  lcd.backlight();
}
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(4,0);
  lcd.print("TEMP : ");
  lcd.print(t);
  lcd.setCursor(4,1);
  lcd.print("HUMI : ");
  lcd.print(h);
  lcd.setCursor(4,2);
  lcd.print("HEAT : ");
  lcd.print(hic);
  if(t>=30){
    lcd.setCursor(6,3);
    lcd.print("HOT");
  }
  if (t>=11){
    lcd.setCursor(6,3);
    lcd.print("WAEM");
  }
  if(t<=10){
    lcd.setCursor(6,3);
    lcd.print("Cool");
  }
  if (t<=-1){
    lcd.setCursor(6,3);
    lcd.print("Snow");
  }
  lcd.setCursor(12,3);
  if(h>=50){
    lcd.print("WET");
  }else if (h<=49){
    lcd.print("DRY");
  }
  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F  Heat index: "));
  Serial.print(hic);
  Serial.print(F("°C "));
  Serial.print(hif);
  Serial.println(F("°F"));
}