//PENGGUNAAN ESP DENGAN SENSOR DHT DAN LDR
//Nama : Dwi Setyaman
//Nim  : 20200130105

//jika suhu kurang dari 31 derajat C maka lampu 1 menyala selama 17 detik setelah itu 
//padam, jika suhu lebih dari 34 derajat C maka lampu 1 dan 2 menyala selama 19 detik 
//setelah itu padam, dan jika sensor LDR bernilai 0 maka lampu 1 dan 3 menyala selama 16 detik
// setelah itu padam



//UNTUK SENSOR SUHU
#include "DHT.h"
#define DHTPIN 15
#define DHTTYPE DHT22  // (AM2302), AM2321
DHT dht(DHTPIN, DHTTYPE);

//UNTUK SENSOR LDR
// defines pins numbers
const int flamepin = 14;
int flamePin = HIGH;
const int ledpin1 = 5;
const int ledPin2 = 4;
const int ledPin3 = 2;

int ldrPin = A0;     // LDR pin
int ldrVal = 0;      // Value of LDR
// LDR Characteristics
const float GAMMA = 0.7;
const float RL10 = 50;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("Hello, ESP32!");
  pinMode(5, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(14, INPUT);

   dht.begin();
pinMode(flamePin, INPUT);
pinMode(ledpin1, OUTPUT); 
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
}

void loop() {
  
  //UNTUK SENSOR SUHU
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  //check if any reads failed and exit early (to try again).
  if (temperature < 31){
    digitalWrite(5, HIGH);
    delay(17000);
    digitalWrite(2, LOW);
    digitalWrite(4, LOW);
  }
   else{ 
    digitalWrite(5, LOW);
    digitalWrite(4, LOW);
  }

  if (temperature > 34){
    digitalWrite(5, HIGH);
     digitalWrite(4, HIGH);
    delay(19000);
    digitalWrite(5, LOW);
    digitalWrite(4, LOW);
  }
   else{ 
    digitalWrite(5, LOW);
    digitalWrite(4, LOW);
    digitalWrite(2, LOW);
  }
 

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("% Temperature: "));
  Serial.print(temperature);
  Serial.print(F("°C"));

  // Wait a few second between measurements.
  delay(2000);

ldrVal = analogRead(ldrPin); // Read the analog value of the LDR
   float voltage = ldrVal / 4095. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));


if (lux <= 0.10 ) {
  digitalWrite(5, HIGH);
  digitalWrite(2, HIGH);
  delay(16000);
  digitalWrite(5, LOW);
  digitalWrite(2, LOW);
}
else{
  digitalWrite(5, LOW);
  digitalWrite(2, LOW);
}


  Serial.print(" ");
  Serial.print("LDR: ");
Serial.print(lux);
 Serial.print(" ");
  Serial.println("lux ");
	delay(1000);
}