For more details about MPDMv4 Universal AC Dimmer please read articles below:

• MPDMv4 – MAINS Dimmer / Switch – General Overview
• Triac command and Phase detection circuits explained

Youtube Video list:

• Arduino Board example
• ESP8266 – ESPBASIC Example
• ESP8266 AC MAINS Dimmer NodeMCU LUA Driver example:
• ESPEasy Part 1: Firmware upload and MPDMv4 driver simple test
• ESPEsay Part 2: ESPEasy + Domoticz + RaspberryPi + MPDMv4 AC Dimmer setup example