Plug Function waveform into port A3 of Arduino Mega board, Ground to GND. Can view FFT results in Serial port at 115200 baud. Prints all Amplitude data first, then all of the corresponding frequency ...
Use the ADC in continuous sampling mode at a fixed frequency > 2x as fast as the fastest frequency I'd like to detect, per the Nyquist Frequency Theorem. We want continuous samples with zero missed ...
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