I recently wrote an integration which sends EG4 18kpv and GridBOSS data to MQTT, collecting it via RS485 wired directly to device. These are devices I own, but it could work with other LUX based inverters too. It functions through raspberry Pi or regular PC. Code is here: GitHub - galets/eg4-modbus-monitor
I am open to modding the code to support other devices, if anyone here is willing to be my tester
Does this get the higher registers like Battery Backup Mode etc?
Any chance of converting this directly to esphome or at least an esp32?
Which registers do you want supported? I can add. Open an issue directly in github, and we can take it from there
not sure which it is, but in the UI itās the Battery Backup Mode. Would love to be able to read and set it. This allows you to have it use the grid and have it charge your batteries at the same time which is great when there is a weather warning (automation kicking it off in home assistant) and then switch back once the warning goes away.
Hereās the PDF file describing all registers on 18kpv. Find what you are looking for, and open a feature request here. Please do research and be as specific as possible, what exactly registers do you want, what they do and how to test them
Appears to be 110 bit 11. But would have to experiment with what that does to make sure itās the correct one in the UI. Just flipping it to battery backup (which I think setting it to 1 does because nothing else matches) charges the batteries to target and powers the load from PV and AC using PV first if possible.
I canāt find anything else it would be. The New UI has this as a separate option and it isnāt obvious in the old interface what it was.
the following link is for new luxpower integration which work exlent vboyhn/Luxpower: connect luxpower inverter to HA