ESP32 based WiFi ArtNet V4 to DMX, RDM and LED Pixels

This is a fork of https://github.com/tinic/ESP32_ArtNetNode which itself is a fork of https://github.com/mtongnz/ESP8266_ArtNetNode_v2

To compile get the latest version of the Arduino environment: https://www.arduino.cc/en/Main/Software

Post install in the Arduino IDE to get a working ESP32 environment:

1. Add "https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json" to the "Additional Boards Manager URLs" text field in the main preferences.
2. Go to Tools -> Board: XXX -> Boards Manager and search for ESP32. Install it. Version 1.0.2 is known to work.
3. Go to Tools -> Manage Libraries. Search for 'ArduinoJson' (without an underscore) and install version 5.13.5 (later versions do NOT work).
4. Go to Tools -> Boards: XXX and select "ESP32 Dev Module" in the ESP32 section.
5. Open ESP32_ArtNetNode/ArtNetNode/ArtNetNode.ino, compile and upload

1. Updated to support ESP SDK 1.0.8
2. Added debug output for IP proto and DMX
3. Externalized HTML and JS with the view to use SPIFFS instead of static strings
4. Tested on ESP32 WROOM with MAX485 chips
5. Updated config versions

1. Upstream hardware used ESP32-PoE ("OLIMEX ESP32-PoE")