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@0x53A 0x53A commented Oct 28, 2025

At the moment this is firmware only with off-the-shelf hardware:

  • a ESP32-S3 devboard
  • a I2S microphone
  • a 16x16 Neopixel Matrix, I use one from amazon

This just runs a FFT on the audio and then maps the FFT channels to different patterns.

Configuration can be changed through Bluetooth, and it can act as a USB "Speaker" so it doesn't use the I2S microphone but instead takes audio data through USB. I'd like to also implement USB Microphone, where it pushes the I2S mic recording to the Host, and firmware updates.

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