There's nothing like remote-debugging your parents smart home. Something broke the powerline link to the garage, now their Home Asisstant instance can't set wallbox charging limits anymore m) Time to build an ESP32 based system with local control that at least has a "just charge it" button. Also: Stupid freaking wallbox that needs constant modbus communications to work. How hard wold a "just do what I told you last time" flag be. I know, for coordinating multiple wallboxes and keeping power limits it's safer to not charge if comms are down, but I'm only doing PV optimization here, not load limiting for any critical stuff.