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Any luck with Home Assistant? #1
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Activity
Unfortunately, I sold the house it was in and don't have one at the new house, so the project is dead. I only got the point where I knew I could measure the modbus signals with a logic analyzer between the ERV and the controller. I never got around to testing commands and working back out what did what.
Reacted by Nicolas
I just got my ERV and I'm looking into doing exactly what you are describing here. I might need to bite the bullet like you did and get an official controller, but what I really want is an esp32 with esphome to control it.
Happy to share any finding here if that's helpful