With his project, a 3-axis Open Source FFT Spectrum Analyzer he is not only entering ... serves as an enclosure for the sensor. The firmware [Ariel] wrote is an efficient piece of code that ...

The “normal” way to build a spectrum analyzer is to collect a bunch of samples and run a Fast Fourier Transform (FFT) on them all in one shot. As the name implies, the FFT is fast, and the ...