[El Artis] just finished building an audio spectrum analyzer that uses a character LCD. The uses an Arduino to drive the display, but unlike other meters that use the microcontroller for analysis, [El ...

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 ...

Tektronix, Inc. has introduced a new class of affordable spectrum analyzers based on a USB architecture with a list price of just $3,490. Tektronix, Inc. has introduced a class of affordable spectrum ...