#define PIN_A 22
#define PIN_B 23
#define PIN_C 4
#define PIN_D 17
#define PIN_E 18
#define PIN_F 21
#define PIN_G 19
#define PIN_PULSADOR 14

#define PINES_TOTAL 7
#define DIGITOS 10

uint8_t pines[PINES_TOTAL] = {
  PIN_A, // A
  PIN_B, // B
  PIN_C,  // C
  PIN_D, // D
  PIN_E, // E
  PIN_F, // F
  PIN_G // G
};

char segmentos[PINES_TOTAL] = {
  'A',
  'B',
  'C',
  'D',
  'E',
  'F',
  'G',
};

int numeros[DIGITOS][PINES_TOTAL] = {
  {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, LOW},
  {LOW , HIGH, HIGH, LOW, LOW, LOW, LOW},
  {HIGH, HIGH, LOW, HIGH, HIGH, LOW, HIGH},
  {HIGH, HIGH, HIGH, HIGH, LOW, LOW, HIGH},
  {LOW, HIGH, HIGH, LOW, LOW, HIGH, HIGH},
  {HIGH, LOW, HIGH, HIGH, LOW, HIGH, HIGH},
  {HIGH, LOW, HIGH, HIGH, HIGH, HIGH, HIGH},
  {HIGH, HIGH, HIGH, LOW, LOW, LOW, LOW},
  {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH},
  {HIGH, HIGH, HIGH, LOW, LOW, HIGH, HIGH}
};


int digitoMostrado = 0;
int botonFuePresionado = 0;
int puedeIncrementar = 0;

void mostrarDigito(int digito);
void limpiar();


void setup() {
  Serial.begin(9600);;
  pinMode(PIN_PULSADOR, INPUT_PULLUP);
  for(uint8_t segment = 0; segment < PINES_TOTAL; segment++) {
    pinMode(pines[segment], OUTPUT); 
  }
}

void loop() {
  
  if (digitalRead(PIN_PULSADOR) == 0) {
    
    if (puedeIncrementar == 1) {
        puedeIncrementar = 0;
        digitoMostrado++;
        if (digitoMostrado >= DIGITOS){
          digitoMostrado = 0;
        }
        limpiar();
    }
    botonFuePresionado = 1;
    mostrarDigito(digitoMostrado);    
    delay(10);    
  } else {
    if (botonFuePresionado == 1) {
      botonFuePresionado = 0;
      puedeIncrementar = 1;
    }
    delay(10);
  }
  
}

void mostrarDigito(int digito) {
  for(int pin = 0; pin < PINES_TOTAL; pin++) {
      digitalWrite(pines[pin], numeros[digito][pin]);
  }
  
}

void limpiar() {
  for(int pin = 0; pin < PINES_TOTAL; pin++) {
        digitalWrite(pines[pin], LOW);
  }
}