Thank you for your answers.
Well, for now I don't want to invest money in a raspberry pi...
I have and I am working only with arduino. If it is possible only with arduino is ok, if not, this is it So, Vera from what I've read it's commercial, but I find some opensource project, like openHAB2.
Yesterday, late at night, I installed openHAB2 on my server, all up and running, with MySensor binding installed.
What do you think about openHAB2? It is worth loosing time with it?
I don't understand the behaviour of all this ...and I want to clarify several things in my head now.
Everywhere I look they talk about Wifi. Why is it necessary wifi ....If I have Ethernet shield W5100, on every arduino that I will want to put in openHAB2?
How is this working? What a gateway does? As I sayd before, I have openhab2 installed and running. What's next? I must use only the examples from mysensors?... if I have my own sketch, it will not work with my code?
I need to know the principles of running this whole system, so I can move on to step2...