   Serial.println("Initializing...");
 
   char timea[12];
-  for(int i = 0; i < sizeof(players) / sizeof(players[0]); i++) {
+  for(unsigned int i = 0; i < sizeof(players) / sizeof(players[0]); i++) {
     players[i].tft.begin();
     players[i].tft.background(0,0,0);
     players[i].tft.stroke(255,255,255);

    TFT(cs_2, dc_2, rst_2),
    "",
    0,
    btn_2_interrupt,
    handle_button_press_2
  }
};


    TFT(cs_1, dc_1, rst_1),
    "",
    0,
    buttons[0].interrupt_number,
    buttons[0].handler
  },
  {
    INITIAL_TIME_MS,
