Is my 🍿 done?

Enable your microphone; wait for your popcorn to come to a rolling pop (multiple pops per second); quiet all non-popping noise; get this device close to your popcorn (within "earshot"); hit the "Start" button below. Once it hears 2 examples of the time between pops exceeding 1.5 seconds, it will let you know by displaying a message and changing the background color of this screen.