Depending on when you grew up, you might have owned or wanted a projector that lit up your bedroom ceiling with a starry night sky. Technology has evolved by leaps and bounds in recent years, and now you can use a Raspberry Pi to project more than just simulated stars. Skylight, as it called, is a fascinating project by GitHub user cpaczek that projects the real time positions more or less of airplanes as they fly over your house onto your ceiling. And you thought a project that made your smart...
