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--                       Copyright (C) 2018, AdaCore                        --
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with MicroBit.Display;
with MicroBit.Buttons; use MicroBit.Buttons;
with MicroBit.Time;

procedure Main is
begin

   loop
      MicroBit.Display.Clear;

      if MicroBit.Buttons.State (Button_A) = Pressed then
         --  If button A is pressed

         --  Display the letter A
         MicroBit.Display.Display ('A');

      elsif MicroBit.Buttons.State (Button_B) = Pressed then
         --  If button B is pressed

         --  Display the letter B
         MicroBit.Display.Display ('B');
      end if;

      MicroBit.Time.Delay_Ms (200);
   end loop;
end Main;
