Which METEO data source for a home automation system ?

at the moment I have too little to brag about.
in any case, the components are:
- arduino
- router with OpenWRT
- dS1820 temperature sensors

and a few others. i am in the process of designing the web interface. I am also trying to plug the ds1820 into the router to monitor the temperature in each room. Tomorrow I am ordering an arduino nano to handle the 1-wire.

In April my co-op is changing all the flats' water meters to ones with remote reading - I'd like to tap into that somehow.

I'm also considering whether to ask the energy company to change the electricity meter to a remote reading version as well.

Both water and electricity would be read by me for statistical purposes (collected and converted into appropriate graphs from the web panel)

So the first stage is to monitor the temperature in the flat and outside (as well as the weather in general)
The next stage is to successively connect light sources to the remote control (with this will be more fun)

I recently bought programmable thermostats for radiators in Lidl for ridiculous money. But that's unlikely to be of much use to me, as I'd have to do the electronics from scratch to be able to remote control with that. Maybe one day I'll buy one that has remote control built in.

What comes out is what comes out....

As always it is certainly a question of reading what is being transmitted, perhaps someone has already figured out the signal. If not, I will actually figure something out myself and put it in front of the counter.

send me your contact details, maybe I'll find something else interesting from him

thanks, I'm going shopping tomorrow