I’m not going into as much depth with this instructable due to my current time constraints. That said, I fully plan on updating this instructable as time progresses with new algorithms and programs for optimization.
I was messing around with some new stepper motors one day, and I decided to make a light tracker unit. It is very simple and works on only one axis. It is a neat science project. Below is a video that offers a small demonstration. The following pages will have videos on how to put it together. There is a lot of discussion about how this kit works in the videos, so if you are really interested, then pay careful attention to what I say in the videos. Below is video#1.
NOTE: While I do sell this as a kit, you can use the ideas and algorithms talked about in this instructable/video to improve upon this basic design. It was designed as a fun little science project. I will be adding software and improvements as time progresses so please be patient with me =)
For more detail: Single-Axis PIC Controlled Solar Tracker DIY Kit