Have any of you messed around with fourier transforms?

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Have any of you messed around with fourier transforms? Interested in trying to get this to work on an attiny. I only need to control 16 LEDs

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I’ve successfully used the OpenMusicLabs FHT library on a Nano/Uno, but have not played with attiny’s. See (about 1:40) https://www.youtube.com/watch?v=72wJx5dUGKM

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@Andrew_Tuline ​ do you know how much Flash memory and RAM that takes up? I have my Attiny85’s blank so i can use all 8KB of Flash and 512 bytes of RAM

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8588 flash and 963 RAM for fht_log, with 16 LED’s.

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Dang. I was really hoping i wouldnt have to sacrifice an Atmega328 or Atmega32u4 lol

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You could always add the hardware and use an MSGEQ7 instead, but again, more cost.

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Well im having to buy those in bulk for another project anyways. 100 of them lol