The FFT, or Fast Fourier Transform, is an algorithm for quickly computing the frequencies that comprise a given signal.Se preferir baixar a apresentação para sua maquina clique aqui. FFT com o Arduino e Processing View more presentations or Upload your own.This would be a very small problem if we had access to the analog signal, we could be on our way with a dual op-amp and some Rs and Cs. But you are technically correct, strictly speaking 'FFT' refers a specific algorithmic trick. FFT is commonly used to refer to spectral transforms generally, as I meant.
