For the software part, this Raspberry Pi project is primarily powered by OpenCV, an open-source computer vision algorithm library. This is what helps the Pi perform hand gesture recognition.

NetHacker pulled out a fan from a junk computer, plugged it into the Pi’s GPIO, and got it working instantly. If you have an old computer sitting around, it probably has a fan that’ll do the ...

Inspired by radio controlled model airplanes, HP is developing new fan technologies to cool hardware more efficiently. I talked to Wade Vinson, HP's fan man and thermal technologist, about the new ...