ESP32 Fast Fourier Transform of Audio & WS2812B mapping

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Debashish Sahu 17a980b8b0 Merge pull request #1 from everslick/patch-1 Fix buffer overflow bug in peak array		2019-07-11 13:32:37 -04:00
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ESP32 Fast Fourier Transform of Audio & WS2812B mapping

Here we use ESP32 microcontroller to analyze real-time audio signals

Real-time FFT to get frequencies (99% of code from ESP32-8266-Audio-Spectrum-Display Project by @G6EJD)
Or use MSGEQ7 chip to get the same data
Display frequency bands on LEDs as bars

Libraries Needed

Software FFT platformio.ini and Hardware FFT platformio.ini is included, use PlatformIO and it will take care of installing the following libraries.

Library	Link
arduinoFFT	https://github.com/kosme/arduinoFFT
WS2812FX	https://github.com/kitesurfer1404/WS2812FX
MD_MSGEQ7	https://github.com/debsahu/MD_MSGEQ7