Fast FFT for IoT application

[Garth Paine]

I am looking for a fast FFT to use on an IoT node. I have looked at pyFFTW although not sure if this will run in microPython and and numPy. I read that these are much slower in Python than in C++ - hence my question here about your collective experience with FFT computation time and the quickest options you are aware of - thanks, Garth

[jcaron]

@Garth-Paine You may want to check previous threads on the topic:

• https://forum.pycom.io/topic/4663/lopy4-fft-spectrum-analysis-micropython-adding-c-code
• https://forum.pycom.io/topic/6444/ulab-fft-spectrogram-performance-drops-for-8192-points-and-beyond

See also:

• https://forum.pycom.io/topic/6234/pycom-firmwares-with-single-double-precision-and-ulab-module
• https://github.com/ph-robadel/ulab_samples#benchmark-of-fft-with-1024-points