Pointer to function in class

Projects General Guidance
7

Here is a version where LEDOutputPeripheral is a derived class of OutputPeripherals. That way the OutputPeripherals class doesn't need a list of LED pins and different LEDOutputPeripheral can have different lists of pins.

class OutputPeripherals
{
  public:
    virtual void init() {};         // !!! správně by tady mělo být vkládání pole(_leds[8] ale pro zjednodušení jsem ho vynechal
    virtual void number(byte n) = 0;
};

class InputPeripherals
{
  public:
    InputPeripherals();
    void init(int buttonAdress, OutputPeripherals &periph);
    void updateClass();
  private:
    int _pin;
    OutputPeripherals *_periph;
};


class LEDOutputPeripheral : public OutputPeripherals
{
  public:
    LEDOutputPeripheral() : _leds {3, 4, 5, 6, 7, 8, 9, 10} {}
    void init();         // !!! správně by tady mělo být vkládání pole(_leds[8] ale pro zjednodušení jsem ho vynechal
    void number(byte n);
  private:
    int _leds[8];
};

InputPeripherals buttonA;
LEDOutputPeripheral leds;

void setup()
{
  delay(20);
  Serial.begin(115200);
  delay(20);
  Serial.println("\nTransfer started \n\n");
  leds.init();
  leds.number(5);
  buttonA.init(12, leds);
}

void loop()
{
  buttonA.updateClass();
  delay(500);
  leds.number(8);
  delay(500);
  Serial.print("end loop\n\n");
  delay(10000);
}


InputPeripherals::InputPeripherals() {}

void InputPeripherals::init(int buttonAdress, OutputPeripherals &periph)
{
  Serial.println("Output set INPUT_PULLUP");
  pinMode(buttonAdress, INPUT_PULLUP);
  _pin = buttonAdress;
  _periph = &periph;
}

void InputPeripherals::updateClass()
{
  Serial.print("Button value is: ");
  Serial.println(digitalRead(_pin));
  if (digitalRead(_pin) == 0)
  {
    Serial.println("calling 3");
    _periph->number(3);
  }
  else
  {
    Serial.println("calling 1");
    _periph->number(1);
  }
}


void LEDOutputPeripheral::init()
{
  for (int i = 0; i < 8; i++)
  {
    pinMode(_leds[i], OUTPUT);
  }
}

void LEDOutputPeripheral::number(byte number)
{
  Serial.print("Incomming number: ");
  Serial.println(number);

  for (int i = 0; i < 8; i++)
  {
    digitalWrite(_leds[i], number & (0x01 << i));
  }
}