According to the release notes for Zoom Rooms on Windows app, support was added as of version 5.15.0 (Release notes for Zoom Rooms for Windows - Zoom Support) for USB-to-Serial adapters.
I haven’t been able to find any examples or other mention of that capability but have an instance where I’d like to directly control a TV that’s near the Zoom Room PC via RS-232, and not via an IP2SL adapter.
Does anyone know what the new JSON values are to target a USB-to-Serial adapter?