Solar PV tracker that can be built by kids
I am looking for instructions for a group of 12 year olds to use to build a small device that is capable of tracking a light source the way that solar PV panels can be made to do. Only one of the kids has (minimal) robotics experience, so this would have to be a very entry-level project. There are some great projects on this site but they are way beyond our capabilities. Any help would be appreciated!