On 11 April 2015 at 01:03, Ruben J=F6nsson wrot= e: > And safety testing for the mains power-supply. > > The power supply safety is irrelevant to my post - unless you want to implement his specific design. My point was to demonstrate what can be done and is being done with the ESP8266. We are already fully aware of what can be done and is done with mains power supplies :-) :-(. FWIW - I have seen sellers specifically claiming FCC certification for some of the ESP2866 based modules. Whether it is in fact fact is tbd. But if it were not so Occam would not be surprised. Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .