#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <Servo.h>

#define Trash_Button      2
#define servo_Trash       7

#define Fan_Button        3
#define Fan_Relay         4

#define Backlight_Button  5
#define BackLight_Led     13

#define DHTPIN            8
#define DHTTYPE           DHT22

#define I2C_ADDR          0x27
#define LCD_COLUMNS       20
#define LCD_LINES         4

Servo servo;
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
DHT dht(DHTPIN, DHTTYPE);


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

  pinMode(Trash_Button, INPUT);
  pinMode(Fan_Button, INPUT);
  pinMode(Backlight_Button, INPUT);

  pinMode(Fan_Relay, OUTPUT);
  digitalWrite(Fan_Relay, LOW);

  servo.attach(servo_Trash);  
  servo.write(0);

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

  dht.begin();

}

void loop()
{
  
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  
  if (isnan(h) || isnan(t)) 
  {
    Serial.println(F("Failed to read from DHT sensor!"));
    lcd.setCursor(0, 0);
    lcd.print("Failed to read");
    lcd.setCursor(0, 1);
    lcd.print("from DHT sensor!");
    return;
  }

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.println(F("°C "));

  //Temperature
  lcd.setCursor(0, 0);
  lcd.print("R.Temp:");
  lcd.setCursor(7, 0);
  lcd.print(t);
  lcd.setCursor(11, 0);
  lcd.print(".");
  lcd.setCursor(12, 0);
  lcd.print("C");

  //Humdity
  lcd.setCursor(0, 1);
  lcd.print("R.Humi:");
  lcd.setCursor(7, 1);
  lcd.print(h);
  lcd.setCursor(12, 1);
  lcd.print("%");

  //Fan Status

  //Back Light Status

  delay(2000);//buton durumu için makine durum yazılacak
}