//UNTUK CODING LCD, LED, DHT SEBAGIAN BESAR DICOPY DARI CONTOH CASE MATERI TUGAS 3 BOOTCAMP
//PENGERJAAN TUGAS HANYA MELINGKUPI PENAMBAHAN LDR

#include <DHT.h>
// #include  <Wire.h>
#include  <LiquidCrystal_I2C.h>

// LiquidCrystal_I2C adalah kelas
// mylcd adalah objek
LiquidCrystal_I2C mylcd(0x27, 16, 2); // Ganti 0x3F or 0x27 dengan address I2C anda

#define DHTPIN 5
#define DHTTYPE DHT22

const int KIPAS = 8;
const int POMPA = 9;

DHT dht(DHTPIN, DHTTYPE);

float hum;
float temp;

//constant terkait LDR
const float GAMMA = 0.7;
const float RL10 = 50;
int analogValue;
float voltage;
float resistance;
float lux;

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

  pinMode(POMPA, OUTPUT);
  pinMode(KIPAS, OUTPUT);
  dht.begin();
  mylcd.init();      //Initialisasi LCD
  mylcd.backlight();  // Mengaktifkan backligh LCD
  delay(250);
  mylcd.noBacklight(); // Menonaktifkan backligh LCD
  delay(250);
  mylcd.backlight();

  mylcd.setCursor(0, 0); // Navigasi LCD pada baris 0 dan character ke 0
  mylcd.print("Edspert.id");
  mylcd.setCursor(0, 1);
  mylcd.print("Bootcamp Ke-4");
  delay(1000);
  mylcd.clear();
  mylcd.print("Tambah LDR by MZ");
  delay(1000);
  mylcd.clear();
}

void loop()
{
  hum = dht.readHumidity();
  temp = dht.readTemperature();

  // Silahkan tambahkan komponen LDR dan baca parameter LUXnya
  // Ini tambahan kodenya
  analogValue = analogRead(A1);
  voltage = analogValue / 1024. * 5;
  resistance = 2000 * voltage / (1 - voltage / 5);
  lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));


  if (temp > 25 && hum < 80) {
    digitalWrite(KIPAS, HIGH); // Kipas Menyala
    digitalWrite(POMPA, HIGH); // Pompa Menyala
    lcdMon("ON ", "ON ");
  }
  else if (temp > 25 && hum >= 80 ) {
    digitalWrite(KIPAS, HIGH); // Kipas Menyala
    lcdMon("OFF", "ON ");
  }
  else if (temp <= 25 && hum < 80) {
    digitalWrite(POMPA, HIGH); // Pompa Menyala
    lcdMon("ON ", "OFF");
  }
  else {
    digitalWrite(KIPAS, LOW); // Kipas Menyala
    digitalWrite(POMPA, LOW); // Pompa Menyala
    lcdMon("OFF", "OFF");
  }
  
  displayMon();

  delay(500);
}

void displayMon() {
  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print("\t Temperature: ");
  Serial.println(temp);

  //TAMBAHAN CODE MENAMPILKAN LUX
  Serial.print("\t Lux: ");
  Serial.println(lux);
}

void lcdMon(String POM, String FAN) {
  mylcd.setCursor(0, 0);
  mylcd.print("H:");
  mylcd.print(hum, 1);
  mylcd.print("%");
  mylcd.setCursor(9, 0);
  mylcd.print("POM:");
  mylcd.print(POM);

  mylcd.setCursor(0, 1);
  mylcd.print("T:");
  mylcd.print(temp, 1);
  mylcd.print((char)223);// prints degree symbol
  mylcd.println("C");
  mylcd.setCursor(9, 1);
  mylcd.print("FAN:");
  mylcd.print(FAN);

  //TAMBAHAN CODE MENAMPILKAN LUX
  delay(1000);
  mylcd.clear();
  mylcd.setCursor(0, 0);
  mylcd.print("Lux:");
  mylcd.print(lux, 1);
  delay(500);
}