[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 ...

I suppose most of us have had the experience of going to the mailbox and seeing that telltale package in the white plastic bag, the sign that something has just arrived from China. This happened to me ...

This file type includes high resolution graphics and schematics when applicable. Designers sometimes need to analyze the spectrum of a modulated carrier. Although they can do this by down-converting ...