For users on non-Windows systems, the sixleds project on GitHub provides a GUI for Linux and macOS. Step-by-Step Programming Guide
LED sign, you need both the management software and the correct communication drivers. am03127 led display software download
For those looking to integrate the AM03127 into custom projects, like a Raspberry Pi-driven display, the sign supports direct RS232 commands. Amplus AM03127 - Amplus Industrial Ltd. For users on non-Windows systems, the sixleds project