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Hi, yes I did get it working. I managed it with two raspberry pi's. One as the controller running alongside the existing drayton SCR (which will come back online if power fails to the controller pi). I then have a management pi that is running a basic website to allow me to control it all...

That's useful, thanks. "Optimum start" .. sounds the same, yes. I have a number of sensors dotted about (outside, loft, bedroom 1, lounge, bathroom and thermostat location). I can use a mix of these depending on my future plans .. although likely I will mainly use the internal thermostat...

OK, answering my own question .. put a multimeter across N and 1 (common), it's 240v ...

Thanks, yes, I've just read up on the actual meaning of weather compensation. I was thinking more of a simpler system, where I just compute on/off based on existing schedules and external temperature. So, if it's below freezing outside, then switch on 30 mins early etc .. not the whole hog of...

I'm trying to build my own system, as it will be far cheaper and far more customisable. I already have multiple temperature and humidity sensors and want to use that data to help feed the system data. As a developer, the software side interests me. I'm nearly finished writing the software and...

I am building a computer controlled boiler system, so that I can remote control my boiler as well as put in more advanced scheduling (including weather compensation). At the moment I have a Drayton wireless thermostat via a Drayton SCR. My system will be a Raspberry Pi with WiFi controlling a...