Hello !
I'm here because I have some others questions...
To set FFT_N to 256, we need to change it in the library or in my program ? (like change all the 128 to 256 : im[256], data[256], if(i < 256), etc...)
And, there's something I don't understand, if we use
for (i=0; i<64;i++){
, i will be set to 65 when for loop finished so, in the next loop(),
if (i < 128){
will only fill data with 63 values ! (128-65) Why ?
And my last question,
is
if (millis() > tt){
necessary ? I know why there is this line but, it is really necessary ?
Thanks you !