#include <Arduboy.h>

Arduboy arduboy;

uint8_t button = 0;

void setup() {
  arduboy.beginNoLogo();
  arduboy.clear();
}

void loop() {
  if (button == 0) {
    if (arduboy.pressed(UP_BUTTON))
      button = UP_BUTTON;
    else if (arduboy.pressed(RIGHT_BUTTON))
      button = RIGHT_BUTTON;
    else if (arduboy.pressed(LEFT_BUTTON))
      button = LEFT_BUTTON;
    else if (arduboy.pressed(DOWN_BUTTON))
      button = DOWN_BUTTON;
    else if (arduboy.pressed(A_BUTTON))
      button = A_BUTTON;
    else if (arduboy.pressed(B_BUTTON))
      button = B_BUTTON;

    if (button != 0) {
      arduboy.clear();
      arduboy.setCursor(0, 0);
      arduboy.print(button);
      arduboy.display();
    }
  } else if (arduboy.notPressed(UP_BUTTON | RIGHT_BUTTON | LEFT_BUTTON | DOWN_BUTTON | A_BUTTON | B_BUTTON))
    button = 0;


}