The photon is able to act as a native keyboard so I decided to build an input device for some computer games. The main parts are the big red and green push buttons which act as classic game buzzers. When pressing one of the big push buttons the WS2812B LED matrix lights green or red depending on button which was pressed first. Additionally the DFPlayer mini which is connected by UART to the photon is playing a buzzer sound on the small speaker.

The five additional buttons are used to trigger additional keys which are useful while playing games.