There are several other quiz buzzer projects kicking around Hackaday if you’re interested. One of our favorites is this system which uses plastic bowls as the buttons.

Quiz bowl teams use buzzers to answer questions about science, math, history, literature, mythology, geography, social science, current events, sports, and popular culture. The matches feature a ...

Quiz bowl teams use buzzers to answer questions about science, math, history, literature, mythology, geography, social science, current events, sports, and popular culture. The team was captained ...