I just thought of an idea to monitor my homes power usage. I am not the most experienced circuits hobbyist but I am learn and quick. Basically I want to modify all my outlets in my house to a custom smart outlet that will monitor the power usage at the outlet and send the information to a server for further processing. I would also like to use power the microcontroller over ethernet. My question does anyone know where I can find a rogowski coil that is small enough to fit in an existing electrical outlet box with little or no modification for it an the uC? I don't know a whole lot about uC and would like to go the pic route. What would be the smallest footprint C based chip that could handle the measuring of the coil and Tx/Rx on ethernet? Also, if I stuck everything into the outlet box (modified or not) do you think I would have a lot of interference from the powerlines.