//manggil library
#include <DHTesp.h>
//inisialisasi pin di D15
const int DHT_PIN = 15;
//inisialisasi di pin 2 
#define ldrPin 2
//in pin 
#define Merah 27 //Lampu
#define Biru 14 //Air
#define Hijau 12 //Kipas
// untuk rumus ldr cahaya
const float gama = 0.7;
const float rl10 = 50;
//library
DHTesp dhtSensor;
void setup() {
  // put your setup code here, to run once:
  //kecepatan pengeiriman datanya 
  Serial.begin(115200);
  //
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(Merah, OUTPUT);
  //low mati
  digitalWrite(Merah, LOW);
  pinMode(Biru, OUTPUT);
  digitalWrite(Biru, LOW);
  pinMode(Hijau, OUTPUT);
  digitalWrite(Hijau, LOW);
}

float Lux(){
  int nilaiLDR = analogRead(ldrPin);
  nilaiLDR = map(nilaiLDR, 4095, 0, 1024, 0); //mengubah nilai pembacaan sensor LDR dari nilai ADC arduino menjadi nilai ADC ESP32
  float voltase = nilaiLDR / 1024.*5;
  float resistansi = 2000 * voltase / (1-voltase/5);
  float kecerahan = pow(rl10*1e3*pow(10,gama)/resistansi,(1/gama));
  return kecerahan;
}

void loop() {
  //sensor kelembaban dan suhu
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  
  //Rule :
  //Suhu rendah lampu menyala merah
  //Suhu tinggi kipas menyala hijau
  // Kelembapan rendah air menyala biru
  // Kelembapan tinggi lampu dan kipas menyala 

  if (data.temperature <= 15){ 
    
    digitalWrite(Merah, HIGH);
    digitalWrite(Biru, LOW);
    digitalWrite(Hijau, LOW);
    if(data.humidity <= 79){
      digitalWrite(Biru, HIGH);
    }
    if(data.humidity >= 96){
      digitalWrite(Hijau, HIGH);
    }
  }
  if(data.temperature >=31){ 
    
    digitalWrite(Merah, LOW);
    digitalWrite(Biru, LOW);
    digitalWrite(Hijau, HIGH);
    if(data.humidity <= 79){
      digitalWrite(Biru, HIGH);
    }
    if(data.humidity >= 96){
      digitalWrite(Merah, HIGH);
      digitalWrite(Hijau, HIGH);
    }
  }
  if(data.humidity <= 79){ 
    
    digitalWrite(Merah, LOW);
    digitalWrite(Biru, HIGH);
    digitalWrite(Hijau, LOW);
    if(data.temperature <= 15){
      digitalWrite(Merah, HIGH);
    }
    if(data.temperature >= 31){
      digitalWrite(Hijau, HIGH);
    }
  }
  if(data.humidity >= 96){ 
    
    digitalWrite(Merah, HIGH);
    digitalWrite(Biru, LOW);
    digitalWrite(Hijau, HIGH);
    if(data.temperature <= 15){
      digitalWrite(Merah, HIGH);
    }
    if(data.temperature >=31){
      digitalWrite(Hijau, HIGH);
    }
  }
  if(data.temperature >= 16 && data.temperature <= 30 && data.humidity >=80 && data.humidity <= 95){
    digitalWrite(Merah, LOW);
    digitalWrite(Biru, LOW);
    digitalWrite(Hijau, LOW);
  }

  Serial.print("Kecerahan : ");
  Serial.println(Lux());
  
  delay(100);
  // put your main code here, to run repeatedly
}