#include <PID_v1.h>
#include <DHT.h>

#include "EEPROM.h"
#define EEPROM_SIZE 64

//#define LDR_INPUT 15  
#define LED_OUTPUT 2  
int boton1= 5;
int boton2= 18;

double Setpoint, Input, Output;
double Kp =.00008, Ki = 1.3, Kd = 0.0004;
PID myPID(&Input, &Output, &Setpoint, Kp, Ki, Kd, DIRECT);

#define DHTPIN 15       // Definimos el pin digital donde se conecta el sensor
#define DHTTYPE DHT22  // Dependiendo del tipo de sensor

DHT dht(DHTPIN, DHTTYPE);  // Inicializamos el sensor DHT11

void setup()
{
  Serial.begin(115200);
  EEPROM.begin(EEPROM_SIZE);

  //pinMode(LED_OUTPUT, OUTPUT);
  //Set point (brightness target)
  //Input = analogRead(LDR_INPUT);
  Input = dht.readTemperature();  // Leemos la temperatura en grados centígrados (por defecto)
  Setpoint = EEPROM.read(0);
  //Turn the PID on
  myPID.SetMode(AUTOMATIC);
  //Adjust PID values
  myPID.SetTunings(Kp, Ki, Kd);
}
void loop() {
  int b1=digitalRead(boton1);
  int b2=digitalRead(boton2);
  if (b1==0){
  Setpoint = Setpoint-1;
  EEPROM.write(0, Setpoint);
  EEPROM.commit();
  }
  if (b2==0){
  Setpoint = Setpoint+1;
  EEPROM.write(0, Setpoint);
  EEPROM.commit();
  }
  delay(100);
  Input = map(analogRead(dht.readTemperature()), 0, 1024, 0, 255);
  if (Input >= 255) {
    Input=255;
  }
  if (Input <= 0) {
    Input=0;
  }
  //PID calculation
  myPID.Compute();
  //Write the output as calculated by the PID function
  analogWrite(LED_OUTPUT, Output);
  //Send data for serial monitoring
  Serial.print("Intensidad:");Serial.print(Input);Serial.print(",");
  Serial.print("SetPoint:");Serial.println(Setpoint);
  
}