Hi Ben and/or Element 14 community,
My local swim team recently had their starting system stolen. They need a replacement soon, but new and even used starting systems are very expensive (used ones range from 250 - 1500 dollars [USD]). I was wondering if possible to make a new starting system that is arduino-based, it would need a buzzer, a light to go off at the same time as the buzzer, and a microphone. I thought maybe the buzzer and speaker for the microphone would be the same. If possible a rechargeable battery would be nice but is not necessary and it would have to be water-proof. Thanks in advance to anyone who answers.
