A while back I got a free sample of some power meter chips. These awesome little chips can very accurately measure power consumption. I really want to build my own smart outlet and hook it up to my network. These chips will enable me to do it.
they are tiny surface mount chips
to test one out on breadboard i had to solder an adapter board. And success! One side is perfect and the other side was close, 3 pin got bridged with solder but it was easy to fix. So far this is the smallest thing I've hand soldered.