Sun Tracking

Solar panels are a great way to produce power literally out of thin air, but how much power they produce depends, in part, on how they are aimed. In order to figure out just how much better his solar setup could be with active tracking, YouTuber GreatScott! decided to test this by creating a miniature solar tracking system.
His device uses four LDRs to feed position data to an Arduino Nano, which then moves the small panel to properly face the sun.