These guys are doing it using just 0.00015W http://supermechanical.tumblr.com/post/25189115532/its-all-on-the-internet-now http://supermechanical.tumblr.com/po

These guys are doing it using just 0.00015W http://supermechanical.tumblr.com/post/25189115532/its-all-on-the-internet-now http://supermechanical.tumblr.com/post/25189115532/its-all-o... Of course it depends on how often you "call home" to check for any information. What might be acceptable for monitoring temperature would not work for a switch when you expect immediate response.