I recently got a new PC case, complete with multiple led illuminated fans. But its obnoxiously bright and way to loud at night, especially when watching movies or trying to sleep.
So I decided to fix that by making an Arduino-based, automatic pwm, temperature sensing, fan controller that gets its temp readings from the PC's on-board sensors over usb-serial link.
This way, the fans only gets as loud (and bright) as needed to remain cool, while extending fan life and reducing household noise levels.
It even has temperature responsive case lighting to make good use of that ever present side-window that all the newer gaming cases seem to have.
If you have an interest in hushing your gaming rig without those dorky looking knobs and switches, or just want to build ultimate automated gaming-related add-on for your pc, check it out here
Here's a 'cheap-cam' video of mine in action.http://www.youtube.com/embed/Y5-TQf7D2xw