One way to address noise on analog signals is to take multiple readings and average them out, but the way that we do this depends on where the noise is originating in our system I always hoped to be ...

[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 ...

What we want is to create a board containing the microphone and spectrum analyzer electronics, thereby forming a combined breakout module that can be used with any popular MCU All sorts of thoughts ...