#include <LiquidCrystal.h>   //library LCD
//koneksi LCD, lihat rangkaian
LiquidCrystal lcd(2,3,4,5,6,7);

#include <DHT.h> //library DHT22
#define DHTPIN 8 //pin data DHT22 konek ke pin 8 Arduino
#define DHTTYPE DHT22 //jenis sensor DHT22
DHT dht(DHTPIN, DHTTYPE); //setup pin dan jenis DHTT ke library
//deklarasi variabel untuk menampung pembacaan suhu & kelembaban
float humi, temp; 

const int lampu = 9; // pin relay lampu
const int dif = 10; // pin difuser
const int servo=11; // pin servo


void setup()
{
  pinMode(lampu, OUTPUT); // relay lampu
  digitalWrite(lampu, LOW);
  pinMode(dif, OUTPUT); // difuser
  digitalWrite(dif, LOW);
  pinMode(servo, OUTPUT); // servo
  digitalWrite(servo, LOW);

  //================
  lcd.begin(16, 2);  //type LCD 16x2
  lcd.print("INCUBATOR"); //tampilan pertama  
  delay(2000); //tunda 2 detik 
  lcd.clear(); //hapus tampilan
  lcd.print("Temp=");//tampilkan di baris 1
  lcd.setCursor(0,1);//pindah ke baris 2
  lcd.print("Humi=");//tampilkan di baris 2
}
//============================
void loop()
{
  humi = dht.readHumidity(); //baca kelembaban
  temp = dht.readTemperature();//baca suhu
  if (isnan(humi) || isnan(temp)) {  //jika tidak berhasil  
    return;//kembali
  }
  else{ //jika berhasil membaca sensor
    lcd.setCursor(5,0); //set kursor di baris 1, kolom 6
    lcd.print(temp);//tampilkan nilai suhu
    lcd.print(" C ");//Celcius
    lcd.setCursor(5,1);//set kursor di baris 2, kolom 6
    lcd.print(humi);//tampilkan nilai kelembaban
    lcd.print(" % "); //% RH  
  }
  delay(1000); //tunda 1 detik

// bagian lampu dan difuser

if(temp <=37.5)
  {digitalWrite(lampu, HIGH);}
if(temp >=38.5)
{digitalWrite(lampu, LOW);}

if(humi <=50)
  {digitalWrite(dif, HIGH);}
if(humi >=60)
  {digitalWrite(dif, LOW);}

// bagian rotor

digitalWrite(servo, HIGH);
delay(1000);
digitalWrite(servo, LOW);
delay(1000);

}