This is simple artnet node.
Required: Arduino UNO
Ethernet Shield with W5100/W5500
OLED display 128x32 I2C
module with max485
Universal Ethernet to DMX Interface
ONE DMX512 Port
Art-Net streaming DMX support
Can be used with any Art-Net compliant console or DMX software
Universe selectable by web browser
Stand-alone DMX buffer mode
WIRING
OLED DISPLAY I2C
VCC --> 5v or 3.3v
GND --> GND
SCL --> SCL
SDA --> SDA
MAX485 module
RO --> not connnected
RE + DE + VCC --> 5v
DI --> TX (D1 PIN)
GND --> GND
A --> DMX OUT
B --> DMX OUT