Arduino Code Plug Function waveform into port A3 of Arduino Mega board, Ground to GND. Can view FFT results in Serial port at 115200 baud.

* Why use a 7 band MSGEQ7 graphic equalizer chip when you can get many times more frequency bins with software alone and on an Arduino UNO to boot? * This example combines high speed A/D conversion, ...

If you’ve ever wanted to make your own VU meter but were scared off by the signal process you need to study this tutorial. Hackaday Alum [Phil Burgess] developed the device using an RGB LED m… ...

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute (RPM). You don’t need much… ...