Underfloor heating thermostat with OpenHAB support?

Question

Electronics

Recommend a floor heating thermostat that can be controlled via WiFi (preferably) or wired and that can be linked to OpenHAB. Maybe from China.

Answer 1

I'm looking for the same myself. So far, only those controlled from the remote control (IR or 443 MHz radio), for example, caleo 330R, have come across.
And here's another idea: you can put a stupid regulator, and in front of it is a controlled (at least by wire, at least via WiFi) relay. I look at the components from the Wiren Board (the developers are on Habré), but there are plenty of Chinese ones.
Then the set temperature can only be changed manually, but OpenHAB can turn it on and off.

Answer 2

I was looking for something like this for a long time, I didn’t find it and made it myself:
There is OpenHab2 and Arduino Mega-based controllers, combined using the MQTT broker Mosquitto. A firmware has been created for the controller, which, depending on the JSON
config loaded (via http or from EEPROM), can:
without thermostat).
Thermostats are autonomous and work even if the entire "smart" infrastructure is turned off. This is important for the security of the system.
2. Issue information in MQTT for display in OpenHab and any automation, accept values ​​of settings and switches from OpenHab
3. Control LED lighting via the DMX protocol with control from OpenHab2
4. Control Modbus devices (I have AC dimmers and a fresh air frequency converter)
5. Receive incoming actions (sensors, switches, buttons) and transfer them to the MQTT bus
6. Control dampers central ventilation / air conditioning
Of course, all this is controlled and monitored conveniently using the "native" OpenHab mobile application.
Of course, the behavior of all these devices can be controlled both using the built-in OpenHab scripts and using third-party systems such as NodeRed (for example, control ventilation valves, flow and heating of external air, temperature of warm floors depending on the temperature outside and in rooms, time of day and season; control lighting depending on the height of the sun above the horizon and the phase of the moon, if anyone needs it))
The system turned out to be quite reliable and scalable (the built-in Watchdog is used for additional reliability, and scalability is ensured by the fact that the number of devices is not limited. Additional the controller is simply placed in a convenient place in the room and connected to the local network)
Also, as I wrote, the controller is completely customizable. There is almost no hardcode anymore, everything is in the settings.
All this works in a productive way for about a year, gradually adding to it.
The site of the project www.lazyhome.ru is gradually filling up (as free time appears). I will also post the sources on GitHub.
The project needs some refinement, documentation, breeding and ordering a printed circuit board of a simple Shield, filling the site, in the end
. If there are like-minded people, there is a feedback form on the site.
Also, if someone shares an invite to Habr, I promise to write a detailed article)