This code/sketch displays the approximate frequency as well as the musical note played on an electronic keyboard or piano app.
Project tutorial by lbf20012001
This Arduino project displays the approximate frequency of the loudest sound detected by a sound detection module.
In this project, I create a sound location finder. This circuit can be used as the basic building block to a robot that reacts to sound.
Hi thanks for asking. With the code, you should be able to find the fundamental frequency of the square wave is at most equal to half the sample frequency. I have not tested it personally but it should be able to do so.
Or connect with your social account:
New here? Create an account