#include <Arduino.h>
int incrementar= 34; 
int decrementar =35; 
int alarma =5; //Pin para el indicador
int binario1=0;
unsigned long button_time = 0;
unsigned long last_button_time = 0;
volatile bool presionado1= false;

unsigned long button_time1 = 0;
unsigned long last_button_time1 = 0;
volatile bool presionado2= false;

volatile int interruptCounter;
int totalInterruptCounter;

hw_timer_t * timer = NULL; //Instalamos el timer
portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED;
void IRAM_ATTR handlerTimerISR() {
  portENTER_CRITICAL_ISR(&timerMux);
  interruptCounter++;
  portEXIT_CRITICAL_ISR(&timerMux);
}

portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;

void IRAM_ATTR incrementarBinario1() //Interrupción que incrementa el contador Binario1
{
  portENTER_CRITICAL_ISR(&mux);
  button_time = xTaskGetTickCount(); //millis();
  if (button_time - last_button_time > 250)
  {
    binario1++;
    presionado1 = true;
    last_button_time = button_time;
    if(binario1>15){
      binario1=15;
    }
}
  portEXIT_CRITICAL_ISR(&mux);
}

void IRAM_ATTR decrementarBinario1() //Interrupción que decrementa el contador Binario1
{
  portENTER_CRITICAL_ISR(&mux);
  button_time1 = xTaskGetTickCount(); //millis();
  if (button_time1 - last_button_time1 > 250)
  {
    binario1--;
    presionado2 = true;
    last_button_time1 = button_time1;
    if(binario1<0){
      binario1=0;
    }
}
  portEXIT_CRITICAL_ISR(&mux);
}


void setup()
{
  Serial.begin(115200);
  pinMode(incrementar, INPUT_PULLDOWN);//Botón que incrementa el contador binario1
  pinMode(decrementar, INPUT_PULLDOWN);//Botón que decrementa el contador binario1

  //Salidas del Contador Binario1
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(15, OUTPUT);

  //Salidas del contador Binario2
  pinMode(18, OUTPUT);
  pinMode(19, OUTPUT);
  pinMode(21, OUTPUT);
  pinMode(22, OUTPUT);

  //Alarma
  pinMode(alarma, OUTPUT);

  //Timer contador binario2
  timer = timerBegin(0, 80, true);
  timerAttachInterrupt(timer, &handlerTimerISR, true);
  timerAlarmWrite(timer, 250000, true);
  timerAlarmEnable(timer);

  //Interrupción externa para incrementar contador binario1
  attachInterrupt(incrementar, incrementarBinario1, RISING);
  //Interrupción externa para decrementar contador binario1
  attachInterrupt(decrementar, decrementarBinario1, RISING);
}
void loop()
{
  //Parte 1 - Contador Binario Con interrupciones Externas
  portENTER_CRITICAL_ISR(&mux);
  if(presionado1==true || presionado2==true ){
    Serial.printf("Contador Binario1 %d \n",binario1);
    switch(binario1){   //Activación de las salidas en binario
      case 0:
        digitalWrite(12, LOW);
        digitalWrite(13, LOW);
        digitalWrite(14, LOW);
        digitalWrite(15, LOW);
        break;
      case 1:
        digitalWrite(12, HIGH);
        digitalWrite(13, LOW);
        digitalWrite(14, LOW);
        digitalWrite(15, LOW);
        break;
      case 2:
        digitalWrite(12, LOW);
        digitalWrite(13, HIGH);
        digitalWrite(14, LOW);
        digitalWrite(15, LOW);
        break;
      case 3:
        digitalWrite(12, HIGH);
        digitalWrite(13, HIGH);
        digitalWrite(14, LOW);
        digitalWrite(15, LOW);
        break;
      case 4:
        digitalWrite(12, LOW);
        digitalWrite(13, LOW);
        digitalWrite(14, HIGH);
        digitalWrite(15, LOW);
        break;
      case 5:
        digitalWrite(12, HIGH);
        digitalWrite(13, LOW);
        digitalWrite(14, HIGH);
        digitalWrite(15, LOW);
        break;
      case 6:
        digitalWrite(12, LOW);
        digitalWrite(13, HIGH);
        digitalWrite(14, HIGH);
        digitalWrite(15, LOW);
        break;
      case 7:
        digitalWrite(12, HIGH);
        digitalWrite(13, HIGH);
        digitalWrite(14, HIGH);
        digitalWrite(15, LOW);
        break;
      case 8:
        digitalWrite(12, LOW);
        digitalWrite(13, LOW);
        digitalWrite(14, LOW);
        digitalWrite(15, HIGH);
        break;
      case 9:
        digitalWrite(12, HIGH);
        digitalWrite(13, LOW);
        digitalWrite(14, LOW);
        digitalWrite(15, HIGH);
        break;
      case 10:
        digitalWrite(12, LOW);
        digitalWrite(13, HIGH);
        digitalWrite(14, LOW);
        digitalWrite(15, HIGH);
        break;
      case 11:
        digitalWrite(12, HIGH);
        digitalWrite(13, HIGH);
        digitalWrite(14, LOW);
        digitalWrite(15, HIGH);
        break;
      case 12:
        digitalWrite(12, LOW);
        digitalWrite(13, LOW);
        digitalWrite(14, HIGH);
        digitalWrite(15, HIGH);
        break;
      case 13:
        digitalWrite(12, HIGH);
        digitalWrite(13, LOW);
        digitalWrite(14, HIGH);
        digitalWrite(15, HIGH);
        break;
      case 14: 
        digitalWrite(12, LOW);
        digitalWrite(13, HIGH);
        digitalWrite(14, HIGH);
        digitalWrite(15, HIGH);
        break;
      case 15:
        digitalWrite(12, HIGH);
        digitalWrite(13, HIGH);
        digitalWrite(14, HIGH);
        digitalWrite(15, HIGH);
        break;
    }
    if(presionado1==true){
      presionado1=false; 
    }
    if(presionado2==true){
      presionado2=false; 
    }
  }

  //Parte 2 - Contador Binario con Timer
  portEXIT_CRITICAL_ISR(&mux);
  if (interruptCounter > 0) {
    portENTER_CRITICAL(&timerMux);
    interruptCounter--;
    portEXIT_CRITICAL(&timerMux);
    totalInterruptCounter++;
    switch(totalInterruptCounter){   //Activación de las salidas en binario
      case 0:
        digitalWrite(18, LOW);
        digitalWrite(19, LOW);
        digitalWrite(21, LOW);
        digitalWrite(22, LOW);
        break;
      case 1:
        digitalWrite(18, HIGH);
        digitalWrite(19, LOW);
        digitalWrite(21, LOW);
        digitalWrite(22, LOW);
        break;
      case 2:
        digitalWrite(18, LOW);
        digitalWrite(19, HIGH);
        digitalWrite(21, LOW);
        digitalWrite(22, LOW);
        break;
      case 3:
        digitalWrite(18, HIGH);
        digitalWrite(19, HIGH);
        digitalWrite(21, LOW);
        digitalWrite(22, LOW);
        break;
      case 4:
        digitalWrite(18, LOW);
        digitalWrite(19, LOW);
        digitalWrite(21, HIGH);
        digitalWrite(22, LOW);
        break;
      case 5:
        digitalWrite(18, HIGH);
        digitalWrite(19, LOW);
        digitalWrite(21, HIGH);
        digitalWrite(22, LOW);
        break;
      case 6:
        digitalWrite(18, LOW);
        digitalWrite(19, HIGH);
        digitalWrite(21, HIGH);
        digitalWrite(22, LOW);
        break;
      case 7:
        digitalWrite(18, HIGH);
        digitalWrite(19, HIGH);
        digitalWrite(21, HIGH);
        digitalWrite(22, LOW);
        break;
      case 8:
        digitalWrite(18, LOW);
        digitalWrite(19, LOW);
        digitalWrite(21, LOW);
        digitalWrite(22, HIGH);
        break;
      case 9:
        digitalWrite(18, HIGH);
        digitalWrite(19, LOW);
        digitalWrite(21, LOW);
        digitalWrite(22, HIGH);
        break;
      case 10:
        digitalWrite(18, LOW);
        digitalWrite(19, HIGH);
        digitalWrite(21, LOW);
        digitalWrite(22, HIGH);
        break;
      case 11:
        digitalWrite(18, HIGH);
        digitalWrite(19, HIGH);
        digitalWrite(21, LOW);
        digitalWrite(22, HIGH);
        break;
      case 12:
        digitalWrite(18, LOW);
        digitalWrite(19, LOW);
        digitalWrite(21, HIGH);
        digitalWrite(22, HIGH);
        break;
      case 13:
        digitalWrite(18, HIGH);
        digitalWrite(19, LOW);
        digitalWrite(21, HIGH);
        digitalWrite(22, HIGH);
        break;
      case 14: 
        digitalWrite(18, LOW);
        digitalWrite(19, HIGH);
        digitalWrite(21, HIGH);
        digitalWrite(22, HIGH);
        break;
      case 15:
        digitalWrite(18, HIGH);
        digitalWrite(19, HIGH);
        digitalWrite(21, HIGH);
        digitalWrite(22, HIGH);
        break;
    }
    if(totalInterruptCounter>15){
        totalInterruptCounter = 15;
      }
    Serial.print("Contador Binario2: ");
    Serial.println(totalInterruptCounter);
    
  }

  //Parte 3 - Reiniciar Contador de Timer
  //Al llegar al mismo valor del contador con interrupciones externas
  if(totalInterruptCounter==binario1){ //Permite reiniciar el Contador del Timer
      digitalWrite(alarma, HIGH);
      timerRestart(timer);
      digitalWrite(18, LOW);
      digitalWrite(19, LOW);
      digitalWrite(21, LOW);
      digitalWrite(22, LOW);
      totalInterruptCounter=0;
    }
  if(totalInterruptCounter!=binario1){
      digitalWrite(alarma, LOW);
    }

    //Parte 4 - Sensor Capacitivo
  /*uint8_t touchSensor = touchRead(4);
  Serial.printf("Sensor Capacitivo: %d\n", touchSensor);
  if (touchSensor > 20)
  {
    digitalWrite(alarma, HIGH);
    timerRestart(timer);
    digitalWrite(18, LOW);
    digitalWrite(19, LOW);
    digitalWrite(21, LOW);
    digitalWrite(22, LOW);
    totalInterruptCounter=0;
  }
  delay(500);*/
}