//2021230037
//Muhammad Raqhib Hamdi
//Teknologi Informasi
//Universitas Darma Persada
//Kamis 30 Mei 2024

#include <ESP32Servo.h>
#include <DHT.h>

#define SERVO_PIN        2
#define RELAY_PIN        26
#define HALOGEN_PIN      4
#define LDR_PIN          34
#define DHT_PIN          15
#define DHT_TYPE         DHT22

#define HEATER_PIN       12
#define FAN_PIN          13
#define BLOWER_PIN       14
#define VALVE_PIN        27

Servo servoMotor;
DHT dht(DHT_PIN, DHT_TYPE);

void setup() {
  pinMode(RELAY_PIN, OUTPUT);
  pinMode(HALOGEN_PIN, OUTPUT);
  pinMode(LDR_PIN, INPUT);
  
  pinMode(HEATER_PIN, OUTPUT);
  pinMode(FAN_PIN, OUTPUT);
  pinMode(BLOWER_PIN, OUTPUT);
  pinMode(VALVE_PIN, OUTPUT);
  
  servoMotor.attach(SERVO_PIN);

  Serial.begin(9600); // Inisialisasi komunikasi serial
  dht.begin();

  Serial.println("Greenhouse Control System Initialized");
}

// Fungsi untuk mengkonversi nilai bacaan analog LDR menjadi lux
float analogToLux(int analogValue) {
  // Konversi nilai analog ke nilai tegangan (voltase)
  float voltage = analogValue * (3.3 / 4095.0); // 3.3V adalah tegangan referensi dan 4095 adalah maksimum nilai ADC
  
  // Konversi tegangan ke lux menggunakan invers dari rumus yang sesuai
  float lux = 10000 / voltage; // Misalnya, menggunakan invers dari rumus yang digunakan sebelumnya
  
  return lux; // Kembalikan nilai dalam satuan lux
}

void loop() {
  // Baca nilai LDR dan konversi ke lux
  int lightIntensity = analogRead(LDR_PIN);
  float lux = analogToLux(lightIntensity);
  Serial.print("Intensitas Cahaya (Lux): ");
  Serial.println(lux);
  
  // Baca nilai temperatur dan kelembaban dari sensor DHT22
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();
  
  // Cek apakah pembacaan berhasil
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Gagal membaca dari sensor DHT!");
    return;
  }
  
  Serial.print("Kelembaban: ");
  Serial.print(humidity);
  Serial.print(" %\t");
  Serial.print("Temperatur: ");
  Serial.print(temperature);
  Serial.println(" *C");

  // Kontrol atap dan lampu berdasarkan intensitas cahaya
  if (lux >= 3170 && lux <= 6700) {
    // Buka atap
    servoMotor.write(0);
    // Matikan lampu UV
    digitalWrite(RELAY_PIN, LOW);
    // Matikan lampu halogen
    digitalWrite(HALOGEN_PIN, LOW);
    Serial.println("Roof Dibuka. UV Lampu Mati. Halogen Lampu Mati.");
  } else if (lux > 6700) {
    // Tutup atap
    servoMotor.write(90);
    // Nyalakan lampu UV
    digitalWrite(RELAY_PIN, HIGH);
    // Matikan lampu halogen
    digitalWrite(HALOGEN_PIN, LOW);
    Serial.println("Roof Ditutup. UV Lampu Menyala. Halogen Lampu Mati.");
  } else {
    // Buka atap
    servoMotor.write(0);
    // Matikan lampu UV
    digitalWrite(RELAY_PIN, LOW);
    // Nyalakan lampu halogen
    digitalWrite(HALOGEN_PIN, HIGH);
    Serial.println("Roof Dibuka. UV Lampu off. Halogen Lampu Menyala.");
  }

  // Kontrol kelembaban
  if (humidity > 90) {
    // Blower ON, Valve OFF
    digitalWrite(BLOWER_PIN, HIGH);
    digitalWrite(VALVE_PIN, LOW);
    Serial.println("Kelembaban > 90. Blower ON. Valve OFF.");
  } else if (humidity >= 80 && humidity <= 90) {
    // Blower OFF, Valve OFF
    digitalWrite(BLOWER_PIN, LOW);
    digitalWrite(VALVE_PIN, LOW);
    Serial.println("Kelembaban 80-90. Blower OFF. Valve OFF.");
  } else {
    // Blower OFF, Valve ON
    digitalWrite(BLOWER_PIN, LOW);
    digitalWrite(VALVE_PIN, HIGH);
    Serial.println("Kelembaban < 80. Blower OFF. Valve ON.");
  }
  
  // Kontrol temperatur
  if (temperature > 27) {
    // Heater OFF, Fan ON
    digitalWrite(HEATER_PIN, LOW);
    digitalWrite(FAN_PIN, HIGH);
    Serial.println("Temperatur > 27. Heater OFF. Fan ON.");
  } else if (temperature >= 21 && temperature <= 27) {
    // Heater OFF, Fan OFF
    digitalWrite(HEATER_PIN, LOW);
    digitalWrite(FAN_PIN, LOW);
    Serial.println("Temperatur 21-27. Heater OFF. Fan OFF.");
  } else {
    // Heater ON, Fan OFF
    digitalWrite(HEATER_PIN, HIGH);
    digitalWrite(FAN_PIN, LOW);
    Serial.println("Temperatur < 21. Heater ON. Fan OFF.");
  }

  delay(1000); // Jeda untuk stabilitas
}