#include <DHT.h>
#include <DHT_U.h>
#include <LiquidCrystal.h>

#define   DHTPIN A0
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);   //Initialize DHT   sensor

#define rs 13
#define rw 12
#define en 11
#define d4 10
#define d5 9
#define d6 8
#define d7 7

#define ledM 6
#define ledK 5
#define ledH 4

LiquidCrystal lcd(rs,rw,en,d4,d5,d6,d7);

void setup() 
{
  // put your setup code here, to run once:
 lcd.begin(16,2);
 dht.begin();
 Serial.begin(115200);
 delay(10);
 lcd.clear();

 pinMode(ledM, OUTPUT);
 pinMode(ledK, OUTPUT);
 pinMode(ledH, OUTPUT);
}

void loop() 
{
  float hum=dht.readHumidity();
  float temp=dht.readTemperature();
  float hic=dht.computeHeatIndex(temp,hum,false);
  
  switch(int(temp))
  {
    case 35:
    digitalWrite(ledM, HIGH);
    break;

    case 30:
    digitalWrite(ledK, HIGH);
    break;

    case 25:
    digitalWrite(ledH, HIGH);
    break;

    default:
    digitalWrite(ledM, LOW);
    digitalWrite(ledK, LOW);
    digitalWrite(ledH, LOW);
    break;
  }

  Serial.print("Temp : ");
  Serial.print(temp);
  Serial.print("°C Hum : ");
  Serial.print(hum);
  Serial.print("% Heat Index : ");
  Serial.print(hic);
  Serial.println("°C");

  lcd.setCursor(0,0);
  lcd.print("Temp : ");
  lcd.print(temp);
  lcd.setCursor(12,0);
  lcd.print(char(223));
  lcd.print("C");

  lcd.setCursor(0,1);
  lcd.print("Hum : ");
  lcd.print(hum);
  lcd.setCursor(13,1);
  lcd.print("%");

  delay(1000);
}