Light up Cornhole
To make the game little more fun, and to experiment with the Arduino microprocessor, I added some sound and lights to one of my boards... I added 20 blue LEDs around the rim and I pulled a dinosaur sound chip and speaker out of a children's toy. An infrared emitter / detector pair mounted across the underside of the hole acts as the trigger. I programmed the Arduino to detect the change in IR level caused by the bean bag passing between the emitter and detector. It then sets off one of 3 light patterns and triggers the sound effect from the dinosaur toy parts. Update: This has broken and I have not put the effort into fixing it yet. I foolishly mounted the Arduino under the board about 5" in front of the hole. Exactly where many people aim when throwing the 1lb bean bag. I think a solder joint or something on the board itself has failed due to the repeated impact. Another failure point was the mounting of the IR LED. I installed some short wooden risers to avoid a hangi