I am an art student and have no experience with the Arduino yet. Nevertheless as far as I understand it is exactly what I need to work on one of my projects: I am building a (photographic) lightbox which is to become brighter as the viewer approaches it. Once the viewer is too close, it will turn itself off. The size of the lightbox is slightly above an A4 size paper and it will probably rely on electricity from a socket. Could someone please give me some advice on which elements I need to create this work? I majored in Physics before I came to artschool, but that was a while ago and so I am a little rusty with these things.