BigClown Open-Source Home Automation

Experienced electronics group of Jablotron spin-off created easy to start home automation modules.

Wireless, low power, open-source software and hardware, clean and well documented SDK (Win, maOS, Linux) and many examples.
They have many example projects which will help you to start with BigClown.

Take a look at
http://bigclown.com
https://github.com/bigclownlabs/