so I have a project in a class. And I need a selector switch for it. I need it to choose between a solar panel and a generator. I want it to switch to the generator when the solar panel begins to produce less electricity. Also Is there a site were there is just a database of schematics for stuff like this? Because I think I also need a switch for rerouting from one battery to another when the first battery is full or when the first battery is not even connected. Any details you need to help me I can give. sorry fro burdening you guys like this