My latest and most accurate trackers are controlled by my Universal Tracker Controller which is made with two double pole relays, four 2 volt solar panels and four diodes. The cost is under $15. The video showcases a few of my favorites. When Covid hit we weren’t able to perform music so I embarked on a journey creating trackers for my solar cookers. I think I might have gotten a bit carried away. See for yourself.

For how to build my universal tracker controller and sensor see his video.
   • How to build my universal dual axis t...