My old “dumb” thermostat packed up while doing some redecorating, so I upgraded to a smart one: the Nest Thermostat:

Nest Thermostat 3rd Gen

One of the cool features of this thermostat is that it can be remotely controlled via the web (http://home.nest.com) or via an app on a smart phone.

Now what would be even better is if I could integrate this with the rest of my home automation setup. And so I went looking online for ways to connect with the intent of 1) extracting data such as temperature and humidity and 2) control the target temperature remotely from DomotiGa.

My first connection attempt was via gboudreau’s unofficial API on GitHub

Although it works perfectly fine, there is some sort of limit on the number of times you can poll the info and eventually the connection gets closed.

I then looked at Google’s official API, and I’ve even followed their tutorial and managed to connect to my Nest, but it’s a little bit too much out of my area of expertise, plus I think the Google codelabs example is intended to be ran on mobile devices rather than a simple web interface. So for now I’ve parked this project for later.

[26th Jan 2017]

Edit: home-assistant.io supports Nest natively, using Google Nest official API. I’m currently working through integrating my Nest with home-assistant.io and get it to talk to DomotiGa. Watch this space.