"The are many devices that have these RF chips embedded inside them. In this post you can see an example on how you can program Z-Wave switches using some OpenSource tools. We will use the open-zwave library. You can use it to interface with all available Z-Wave PC controllers. We have the Aeon Labs Z-Stick S2 and a Raspberry Pi."
Full tuturial on Agilart: http://www.agilart.com/blog/open-zwave