It was fun to mess around with the arduino to find what changed the pitch and frequency of the siren. When we changed the value of 1000 in the tone value, the bigger the number, the higher the pitch was created. Also, multiplying sine by a larger number, the pitch would change too. Changing the delay would make the siren go for a longer period of time, or a shorter period of time, depending on the number. When the delay is longer it sounds more like an ambulance, but when it's shorter it can sound like a bunch of treefrogs. After awhile, it gets really annoying and all you hear for the next few hours is the high-pitched whine of the sirens. It's a great time. https://drive.google.com/a/slsharks.net/#shared-with-me