I took some creative liberty with this project. Instead of fading slowly from white to red leading up to the event (with this implementation the user doesn't know how soon the meeting starts), I had one LED change from white to red each minute leading up to the meeting. In this way, the user knows exactly how long he/she has until the meeting starts.
In the demo video, I sped up the color changes so the video isn't 30 minutes long. For the actual implementation, I simply used a delay of 60,000 (rather than 1000, so that one LED changes each minute).
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