pandaym

Hi guys, Writing in English, as I am not from Poland, but found this to be the only place on internet where the Dospel ventilation systems are discussed. Used Google translate to read through this thread, but it seems that it doesn't always translate well I just got a Dospel Optimal 400, and I am about to install it in my 175 square meter house. I would like to know if anyone has done any modifications to these units to make controlling them smarter/better? I studied the schematics, and found that almost everything in the unit can be controlled by relays, except for the actual fan speed. The speed is controlled by a 0-10v signal coming from the control panel, where the value depends on what temperature the panel reads in the room. Now I have Home Assistant running everything in my house over WI-FI/Zigbee/Z-Wave/MQTT. So I looked into ways to integrate this dospel unit with all controls into my system, so I can run automation on it based on temperatures in all rooms, timers, triggers of all sorts etc. I was thinking about adding a Qubino 0-10v dimmer( http://qubino.com/products/flush-dimmer0-10v/ ) to provide the 0-10v analogue signal to control 0-100% on the fan speed. For the rest of the controls, I was planning on using Sonoff 4CH Pro R2 relays ( https://www.itead.cc/sonoff-4ch-pro.html ). So for example instead of using the button to do manual bypass, I put a relay there. And then when it is on manual bypass, I can simply use a relay also to open/close the bypass. Before planning on Qubino and Sonoff, I was planning to use a UniPi( https://www.unipi.technology/unipi-1-1-p36 ). The concept is exactly the same, and the relays and analogue 0-10v needed is the same. When I was planning for that, I drew these schematics. Excuse my handwriting: Anyone got any comments on this? Or anyone done something similar?