Audio Codec - FFT
This example shows how to use the FFT class to calculate the fast Fourier transform of a signal to extract the frequencies present in the signal.
Open the example, “Files” -> “Examples” -> “AmebaAudioCodec” -> “FFT”.
Upload the code and press the reset button on Ameba once the upload is finished.
Open the serial monitor, and the output results of the FFT calculation will be displayed.