I couldn't find a pcb to accept a ESP12E, the basic components to get it running and a few components to drive leds, relays and attach to the common I2C modules, so I designed one that can be hand-soldered. I have put it on sale on ebay.co.uk and user guide on [url]tinyurl/MIOTb[/url] in case it is of use to anyone else.

Regards,
sixbacon