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DRHuff wrote:

Yes it was.

typedef void (*ButtonPressHandler) (void);

void checkButton(const int BUTTON,  bool &last, bool &current, ButtonPressHandler handler ){
  current = debounce(last, BUTTON);              // Read debounced state
  if (last == LOW && current == HIGH)    // If it was pressed…
  {
    // This runs the code that we want to happen 
    // when the user presses the button.  The function ptr 
    // allows us to do different types of work
     handler();
  }
  last = current;                        // Reset button value
}

boolean debounce(boolean last, int button)
{
 boolean current = digitalRead(button);    // Read the button state
 if (last != current)                      // If it's different…
 {
  delay(5);                                // Wait 5ms
  current = digitalRead(button);           // Read it again
 }
 return current;                           // Return the current value
}

// My device has a button that changes the room (location)
// The last argument is the button handler code (pointer to function)
checkButton(ROOM_BTN,roomBtnPrev,roomBtnCurrent,checkChangeRoomButton);

// It also has a button that turns data writing (to SD Card) on / off
checkButton(DATA_BTN, dataBtnPrev, dataBtnCurrent, checkWriteDataButton);

CPallini wrote:

You could do that with a virtual function, couldn't you?

raddevus wrote:

I'm not sure. What is a virtual function?

Quote:

Can you create a virtual function in Arduino code?