The technical detail blog post has a bit more information. At first I was wondering why they decided to go with an RPi instead of a few enterprise servers, and

The technical detail blog post has a bit more information. At first I was wondering why they decided to go with an RPi instead of a few enterprise servers, and it looks like they're utilizing the GPIO interfaces to interact with relays to power some of it. https://www.monterail.com/blog/2016/smart-office-raspberry-pi https://www.monterail.com/blog/2016/smart-office-raspberry-p...