The master source code is available here -> https://github.com/vanvught/rpidmx512
A development board is available here -> https://github.com/vanvught/GD32F450-Pixel-DMX512
Full documentation will be available here -> https://www.gd32-dmx.org
The ready to use firmware is build to use with the bootloader TFTP server -> https://github.com/vanvught/GD32F450VI-Bootloader-TFTP
HTTP/JSON Remote configuration (RNC)