There are 4 temperature sensors connected to our central heating system:
1 is an NTC 1k placed outside connected to the central heating unit 3 sensors are connected to the sun boiler (heat exchanger & boiler & temperature panels)
I want to read out and log those data (without interfering...) and I am a newbie :~ Goal: have a webpage on my server with graphs, trends and efficiency of the heating system over time....
Any idea how I should progress and which components I would need?
- Can I connect extra wires from already connected temperature sensors?
- Communication to server backend? I've RJ45 cabled nearby... maybe useful for POE as well?