I thought of a really cool project to do with my PIC micro controllers. One thing that has always interested me was EMF (Electromagnetic Fields). Ultimately I would like to build a meter that can measure EMF in a given area. I have done some searching and I can't seem to find a component that can do such a task. I was wondering if anyone knows the name of such a component or is it possible to build my own discrete circuit to get the same results?