This is the second in a series of blog posts about some of my adventures into the world of Home Automation with openHAB. Part 1 was primarily about building and preparing the Linux (Debian) based system and the openHAB base install. In this second article we will dive into the details of maken openHAB do usefull things, like controlling lights or showing gas and electricity usage data and graphs. Note that this set of articles is focused on my particular setup. Your milage may vary, but you will most likely pick-up a thing or two for your own environment.