My Problem is… When I install OpenHAB on my Rasperry Pi and my goal is to control my heating.
I surely need something like this: http://www.amazon.de/gp/product/B00FCX1WKM
But how does this communicate with my rasperry pi? … I have no Idea how this should work…
there are various ways to let openHAB talk with Homematic devices.
Some are listed in the wiki under requirements: https://github.com/openhab/openhab/wiki/Homematic-Binding
Personally i use a Homematic CCU2.
I think the cheapest way is to use a Homematic HM-CFG-USB Stick directly plugged into the Raspberry. But the configuration is a little bit harder.
I have a HM-CFG-USB-2 Stick and no CCU. I found no info how to config this adapter. Is theare any tipp for the configuration for HM-CFG-USB-2?