I have always been mesmerized by lights synced to music. I had always wanted to make something that would react to music but lacked the mathematical background to understand how it to implement it.

This Arduino sketch uses the Digilent Analog Shield and the Open Music Labs FHT library. It takes an input on A0 of the shield, produces a 128 bin FFT and returns the spectrum of the input signal on ...

If you are a hacker, you might consider ham radio operators as innovative. Most people, however, just see them as cheap. So it is no surprise that hams like [jmharvey] will build an antenna analyzer ...

Every machine has its own way of communicating with its operator. Some send status emails, some illuminate, but most of them vibrate and make noise. If it hums happily, that’s usually a good sign, but ...