@mstormi
I see, so then B it is for me. Thanks for the advice! Then my next step is to figure out how I will wire it up, i.e., where to place my OH central unit and how to connect the actuators, temperature sensors and per-room input units (if I decide to have such).
The reason why I was thinking about Arduino is that I thought of having a unit consisting of
in every room which has radiators (there are 3 such rooms), since each of these rooms has ethernet plugs anyway, and so it seemed the easiest way how to connect to the OH central unit in a different room. Of course, for a simple setup and testing I can start with just a temperature sensor and valve actuator connected directly to OH in one room, and then decide how to extend from there.
It is wireless, and it does use batteries. I have five of these Thermostatic valves in my house. They provide actual temperature and actual humidity measurement, as well as target temperature control, with time schedule, and home/away function.
They have their own very nice app, and they also integrate very nicely in OpenHAB.
I have personally worked on the OH binding to add channels for battery low alarm monitoring, and open window detection.
The batteries are two AA cells, and in my house they last about one year.
With that attitude, I wonder why you post it at all Also I wouldn’t call it an “intelligent suggestion” to recommend a wireless system in a topic that is specifically about wired components, and even says so in the title, instead of posting it somewhere where it is more likely to be found by readers who do use wireless systems and might be interested in your solution (even if you don’t care).
Also I wouldn’t call it an “intelligent suggestion” to recommend a wireless system in a topic that is specifically about wired components, and even says so in the title, instead of posting it somewhere where it is more likely to be found by readers who do use wireless systems and might be interested in your solution (even if you don’t care).