Optical Mouse Cam

OK, so I finally decided to get my hands on the Arduino platform and see what all the buzz is really about. And I must say, I'm impressed. This is by far the most developer-friendly development platform I've ever seen. It's main advantages :
  • It's simple. The hardware is very simple and uses standard, commonly available components. The software IDE is basic but functional : editor window, status window, integrated serial terminal. That's it.

HDD Grinder Stone

In some www I found image of HDD transformed to grinding stone. It was placed in “jokes” category. But I decided, that small grinding machine is useful for hobbyist. I use old 2G HDD “Western Digital Caviar 22500″. It is only 5K rev/minute HDD. Removed cover and all heads, magnets. Took sandpaper and glued to one disk plate.

UTP Lighting Protection