Hello,
I would like to present you my latest project - 2 gang dimmer to be placed in wall (EU) with livolo panel on top of it. Works with standard light bulbs and dimmable leds
sorry fot the panel condition - it wen throuhg a lot 
in short:
220v to 3v3 power supply
esp8266-12e
printable case
zero-cross detection
ttp223 touch sensors
1.2A per dimm channel
ws2812b RGB led
and some pictures:
