{"id":20409773,"url":"https://github.com/jmysu/esp32_vu","last_synced_at":"2026-04-16T14:05:27.589Z","repository":{"id":182255838,"uuid":"257771056","full_name":"jmysu/ESP32_VU","owner":"jmysu","description":"A simple ESP32 T-Audio I2S VU w/ NeoPixels","archived":false,"fork":false,"pushed_at":"2020-04-26T11:36:50.000Z","size":28360,"stargazers_count":1,"open_issues_count":0,"forks_count":3,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-03-05T02:43:31.313Z","etag":null,"topics":["arduino","esp32","fastled","i2s","microphone","mp3","neopixels","sd","wm8978"],"latest_commit_sha":null,"homepage":null,"language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-3.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/jmysu.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null}},"created_at":"2020-04-22T02:33:48.000Z","updated_at":"2020-04-26T11:36:52.000Z","dependencies_parsed_at":"2023-07-19T10:32:44.509Z","dependency_job_id":null,"html_url":"https://github.com/jmysu/ESP32_VU","commit_stats":null,"previous_names":["jmysu/esp32_vu"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/jmysu/ESP32_VU","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jmysu%2FESP32_VU","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jmysu%2FESP32_VU/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jmysu%2FESP32_VU/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jmysu%2FESP32_VU/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jmysu","download_url":"https://codeload.github.com/jmysu/ESP32_VU/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jmysu%2FESP32_VU/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":265245987,"owners_count":23734109,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["arduino","esp32","fastled","i2s","microphone","mp3","neopixels","sd","wm8978"],"created_at":"2024-11-15T05:43:30.320Z","updated_at":"2026-04-16T14:05:27.554Z","avatar_url":"https://github.com/jmysu.png","language":"C++","readme":"# ESP32_VU [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)\u003cbr\u003e\nA simple ESP32 T-Audio I2S VU w/ NeoPixels, fixed random flickering issue by replacing library with FastLED.\n\n\n\u003cimg src=\"picture/WM8978VU0422.png\"/\u003e \u0026nbsp;\u0026nbsp;\u0026nbsp;\u003cimg src=\"picture/wm8978vu.gif\" width=240/\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u003cimg src=\"picture/Neo0426.gif\" width=240/\u003e\n\u003cbr\u003e\u003cbr\u003e\n## I2S Output\n\u003cimg src=\"picture/400px-Waveforms.svg.png\"/\u003e\nTo test the I2S Output, rename either _mainDuDu.txt or _mainDoReMi.txt to cpp, build and flash.\u003cbr\u003e\nThe _mainDoReMi implemented 4 kinds of waveform as above picture!\n\u003cbr\u003e\u003cbr\u003e\n\n## Play MP3\n\u003cimg src=\"picture/playMP3_0422.png\"/\u003e\nTo play MP3 audio, put the file into SD card root, build _mainMP3.cpp and flash!\n\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\n## References\n  - [TTGO T-Audio IDF components](https://github.com/LilyGO/TTGO-TAudio) TTGO IDF code at Github\n  - [Arduino FFT](https://github.com/kosme/arduinoFFT) Arduino Fast Fourier Transform for Arduino \n  - [NeoPixel library](https://github.com/adafruit/Adafruit_NeoPixel) Arduino Adafruit NeoPixel Library.\n  - [FastLED library](https://github.com/FastLED/FastLED) Another faster NeoPixel Library.\n  - [Helix MP3 I2S Audio](https://github.com/schreibfaul1/ESP32-audioI2S) Original ESP32 MP3 I2S player\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjmysu%2Fesp32_vu","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjmysu%2Fesp32_vu","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjmysu%2Fesp32_vu/lists"}