Board libraries required:

• ESP8266 Boards Version 2.5.2 (installed to arduinoIDE in boards manager)

or

• ESP32 Boards Version 1.0.3 (installed to arduinoIDE in boards manager)

Additional libraries required

• ArduinoJson version 5 (I'm using version 5.13.5) (Will not work with version 6)
• PubSubClient Latest version
• FastLED Latest version (3.3.2)

Options

• ESPAsyncE131 Latest version (if you want to use E1.31)
• ESPAsyncUDP (required by ESPAsyncE131)
• RotaryEncoder by Matthias Hertel Latest Version (If you want to use rotary Encoder)

For more information on setting up the libraries, see the Setup page