The four colored buttons seen above are a product made by discovering Resources. They flash as well as make noise when pressed as well as are meant for quiz-show style games in the classroom. The issue is that they don’t utilize a central controller, so it’s as much as the person running the game to judge who rang in first. [Kenny] fixed that problem by building his own controller which is housed in that black job box.
He went with an Arduino Uno board. It fits in the job box as well as has no issue tracking all of the buttons as well as triggering their noise as well as lights when necessary. There are two telephone jacks (RJ11 connectors) on either side of the controller. He likewise cracked open each button, cutting some traces on the PCB in order to patch the signals into connectors he added to the housing.
The video after the break shows the system in action, In addition to illuminating the very first button to sound in there are LEDs on the box that suggest who was 2nd, 3rd, as well as 4th in line.
If you don’t want to purchase buttons try making your own with some inexpensive plastic bowls.