EG4 FlexBOSS21 over USB RS485

Summary Requires pylxpweb>=0.9.38b3 (joyfulhouse/pylxpweb#229, paired-frame local start, live-validated on FlexBOSS21 2026-07-12). - LOCAL/HYBRID start now honors the duration: the Quick Charge switch's start goes through pylxpweb's paired reg 233+234 contiguous frame, so a locally-started charge runs for the requested minutes (previously firmware-default length; a lone idle reg-234 write is firmware-rejected, #251). - Duration number: idle-set stores the per-serial start preference (previously raised ServiceValidationError); active-set still writes reg 234 live to extend/reduce the running …

Excerpt saved from GitHub on 2026-10-23.

I've wired my rs485 to usb adapter which is plugged into a windows 11 computer. I have A, B, and Gnd wired up. Here's the topography: FlexBoss21 Meter port (A+/B-/GND) │ ▼ USB-to-RS485 adapter (Prolific PL2303GC, "ATEN Serial Bridge", VID:PID 067b:23a3) 120Ω termination enabled on the adapter's TX pair │ USB ▼ Windows PC ("garagesolar", physically near the inverter) - Adapter enumerates as COM3 - Shared over the network via usbipd-win (VID:PID 067b:23a3, busid 1-4) │ USB/IP over LAN (TCP 3240) ▼ Stargate (Ubuntu host running KVM/libvirt, separate physical machine) - Linux usbip client …

Excerpt saved from GitHub on 2026-10-23.