A project to graph temperature data from the ControlByWeb temperature module and the Nest Thermostat into rrdtool. Nest Thermostat data retrieved via nest-api. Send your temperature reading to the Weather Underground Personal Weather Station network as well.
Blog post here.
After you clone this repo, run a git submodule init then git submodule update to get the nest-api submodule checked out as well (files will be under vendor/nest-api)
In config.inc.php enter the following info:
- Your Nest login & password.
- The url to the ControlByWeb temperature module's XML status page
- Your wunderground PWS station ID & password
Create your temperature RRD (see CREATE_RRD.md)
Set up 2 cronjobs to run the polling and graphing scripts
*/5 * * * * php -f /path/to/temperatures.php | xargs /path/to/rrdupdate /path/to/temperatures.rrd
*/2 * * * * /path/to/create_graph.sh >/dev/null 2>&1