Does anyone have a simple guide for setting up an Ardunio Ethernet gateway in Openhab. I've read lots of pages, youtube videos and there doesn't seem to be a good "How to" from beginning to end. There's lots of pieces but the following links are as close as I've come to finding something useful. Does anyone have any advice/guidance?

Thanks in Advance, (as I've, as many of you have spent countless hours trying to figure this out, which it's very simple to someone..

http://www.instructables.com/id/OpenHAB-on-Raspberry-Pi/
http://www.makeuseof.com/tag/getting-started-openhab-home-automation-raspberry-pi/