This binding add-on integrates Voltronic inverters, known also as Axpert, Effecta, MPP Solar, Voltacon or just No name.
JAR file: https://github.com/dilyanpalauzov/openhab-voltronic-inverter/releases/download/20251201/org.openhab.binding.voltronic-4.3.9-SNAPSHOT.jar
Git repository: https://github.com/dilyanpalauzov/openhab-voltronic-inverter/
README: https://github.com/dilyanpalauzov/openhab-voltronic-inverter/blob/voltronic_inverter_4.3/bundles/org.openhab.binding.voltronic/README.md
Installing the add-on is a matter of putting the jar file under openhab/addons/ directory. It is tested with openHAB 4.3 and 5.1.
As can be seen in the Readme file the only tried communication is by using USB cable, plugging the USB-B end in the inverter and the USB-A end on the openHAB-side. The Readme file describes also how to replace the nrjavaserial jar file from the openHAB distribution to make the communication work.
Comments can be made here or at https://github.com/dilyanpalauzov/openhab-voltronic-inverter/issues .
I hope this binding will be useful for all openHAB users with such hardware. I created this binding, as I wanted to transfer data from the inverter to openHAB in short polling cycles on low powered devices.
Updates of the add-on might change the channels structure and this would require writing transition files for things created over the UI. I do not plan to write such transition files, so either create the thing as a file in the openhab/things/ directory, or delete the thing from the UI before installing new version of this add-on.