https://github.com/jmysu/esp32_vu

A simple ESP32 T-Audio I2S VU w/ NeoPixels
https://github.com/jmysu/esp32_vu

arduino esp32 fastled i2s microphone mp3 neopixels sd wm8978

Last synced: 4 months ago
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A simple ESP32 T-Audio I2S VU w/ NeoPixels

• Host: GitHub
• URL: https://github.com/jmysu/esp32_vu
• Owner: jmysu
• License: gpl-3.0
• Created: 2020-04-22T02:33:48.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2020-04-26T11:36:50.000Z (about 5 years ago)
• Last Synced: 2025-01-15T13:08:38.422Z (6 months ago)
• Topics: arduino, esp32, fastled, i2s, microphone, mp3, neopixels, sd, wm8978
• Language: C++
• Size: 27 MB
• Stars: 1
• Watchers: 2
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ESP32_VU [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)


A simple ESP32 T-Audio I2S VU w/ NeoPixels, fixed random flickering issue by replacing library with FastLED.

       





## I2S Output



To test the I2S Output, rename either _mainDuDu.txt or _mainDoReMi.txt to cpp, build and flash.


The _mainDoReMi implemented 4 kinds of waveform as above picture!





## Play MP3



To play MP3 audio, put the file into SD card root, build _mainMP3.cpp and flash!










## References

  - [TTGO T-Audio IDF components](https://github.com/LilyGO/TTGO-TAudio) TTGO IDF code at Github

  - [Arduino FFT](https://github.com/kosme/arduinoFFT) Arduino Fast Fourier Transform for Arduino 

  - [NeoPixel library](https://github.com/adafruit/Adafruit_NeoPixel) Arduino Adafruit NeoPixel Library.

  - [FastLED library](https://github.com/FastLED/FastLED) Another faster NeoPixel Library.

  - [Helix MP3 I2S Audio](https://github.com/schreibfaul1/ESP32-audioI2S) Original ESP32 MP3 I2S player