Hi Guys,

Currently im working with the example code provided by the FFT library, and for the life of me, i cannot work out how to change the frequency range the the FFT calculation. im sorry if this is very confusing as to what im asking, i have a vague understanding of how it works. Pretty much, im using the fft library to divide the frequencies into 64 bins, then im using the values from these bins (only 3 bins for the moment) to fade in a rgb led string. the original author has said "Analog signal is captured at 9.6 KHz, 64 spectrum bands each 150Hz which can be change from adcInit()" - i have gone there and cant work out what to change, could anyone please help me out, cheers, Abraham smiley. I have atatched the original example code, note, this contains all the files required, even the fft lib which you will have to add, as well as the processing code, which displays the data as a graph, and the complete original arduino code.