#include <LiquidCrystal_I2C.h>
#include <dht.h>

dht dht22;
#define DHT22_PIN 2
#define DHTPIN 2     // Pin data sensor DHT22 terhubung ke pin 2 Arduino
#define DHTTYPE DHT22   // Sensor yang digunakan adalah DHT22

#define BLUE_LED 13     // LED biru terhubung ke pin 13 Arduino
#define GREEN_LED 12   // LED hijau terhubung ke pin 12 Arduino
#define YELLOW_LED 5  // LED kuning terhubung ke pin 5 Arduino
#define RED_LED 7    // LED merah terhubung ke pin 7 Arduino

LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {

  lcd.init(); 
  lcd.backlight();

  lcd.setCursor(0, 0);            
  lcd.print("SMAN 1 TANGSEL");          
  lcd.setCursor(0, 1);            
  lcd.print("INFORMATIKA"); 
  lcd.setCursor(0, 2);            
  lcd.print("NAMA SISWA");          
  lcd.setCursor(0, 3);            
  lcd.print("KELAS X-10"); 

  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);  
  pinMode(5, OUTPUT);  
  pinMode(7, OUTPUT);  
}

void loop() {
  delay(1000); 
  int chk = dht22.read22(DHT22_PIN);

  lcd.clear();
  
  lcd.setCursor(0, 2);
  lcd.print(String("Temp : ")+String(dht22.temperature, 1));   
  lcd.setCursor(0, 3);
  lcd.print(String("Humidity : ")+String(dht22.humidity, 1));


  if(dht22.temperature > 45)
  {
    digitalWrite(13, HIGH);
    digitalWrite(12, LOW);
    digitalWrite(5, LOW);
    digitalWrite(7, LOW);
    delay(200);
  }
  else if(dht22.temperature >= 37)
  {
    digitalWrite(13, LOW);
    digitalWrite(12, HIGH);
    digitalWrite(5, LOW);
    digitalWrite(7, LOW);
     delay(200);
  }

    digitalWrite(13, LOW);
    digitalWrite(12, LOW);
    digitalWrite(5, LOW);
    digitalWrite(7, LOW);