FFT codec problem

rob153

     i have project requires fft codec. found them downloaded them would

not compile, not find fft.h. checked, it's in library. went , made sure

the program in right dir. can 1 help? if delete sketch remove

from uno?

                                           rob153

you should provide more information help.
we cannot see code or downloaded from.

an sketch stays intact on uno until 1 uploaded.
you cannot c/c++ source code uno

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