Archive for November, 2010

Goofed fiber channel cable

Just a ‘fun’ little post today… Today I figured out that one of our HBA’s (Host Bus Adapter) in a VMware ESX host, did no longer have a correct connection to our SAN (Storage Area Network). After some troubleshooting, I figured out why: Guess fiber channel cables don’t like bending :-)

Z-wave and python node discovery, more bitwise trickery

This post continues upon the last blog post, in the last post we looked at some z-wave protocol basics. At the same time we had a look at a bitwise operation (XOR), in this post some more bitwise tricks will be used to do z-wave node discovery. Node discovery is essential to get information about […]

Getting started with z-wave and python

I started playing around with my new z-wave kit. I ordered an Aeon-Labs Z-stick (series 2) and a Duwi dimmer module to start with. Here are some images of both devices: