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...
Thank you!
Adrian

I saw this project: https://www.mysensors.org/build/irrigation , for an irrigation controller I want to build.
Lets say I have the basic knowledge of electronics, arduino, etc. How is possible for this arduino irigation controller to be controlled from the phone? Which android app is using? Is there anything else involved in this process? Is there something I need to have? A vera controller? well... I have a linux/windows server. Can I host a controller on the server, so I don't need to buy other controllers or so? In the video is not mentioned all the detailes. I spend some time to find answers for this questions ...without success. I even downloaded mysensors library.. I did upload a gateway serial controller to a uno using w1500... but I reached a dead end. What am I missing?
I need to find basics of what I've need to accomplish this.
Thank you!
Adrian