Noob - Creating a Solar Tracker

I want to create a Solar Tracker for a solar panel.

Any suggestions on what sensor and controller would be a good fit?

Just about any light sensor will do. The controller would depend on the size of the panel, the panel mounting framework and the details of the drive mechanism that orients the framework.

There are thousands of DIY solar tracker projects on the web.

Thanks for the input. I will have more details soon.