I’m going to test FFT (because I cannot find a word about FFT - Squirrel or electricimp). I have some experience in Javascript FFT, as well as with Cortex M4 arm-math and find some examples written in C (C++).
But cannot find a way how to use arm_math with Squirrel and imp.
May be I try to reinvent a wheel and such library are available somewhere?
Any idea how to implement FFT in to imp code?