Nest Thermostat Data Logging

I have a Nest thermostat here at the house, which we really like a lot. It’s great for keeping track of energy usage on heating, as well as being able to remotely control the settings, in addition to the insanely awesome scheduling it can take care of.

However, I had wished that it offered some way to log or plot the data available from the onboard sensors for temperature and humidity inside the house. Unfortunately, it’s not *really* available. However, some some helpful dude made an PHP class that makes use of the interface the nest itself uses to talk, so I’ve taken advantage and am now making fancy graphs of the data. Woo!