Top 10 i2 Open-Source Projects

ESP8266Audio

1 19 2,364 8.0 C

Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, OGG/Opus, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32 and Pico
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ESP32-audioI2S

2 14 1,632 9.8 C

Play mp3 files from SD via I2S
NanoVNA

3 3 1,347 0.0 C

Very Tiny Palmtop Vector Network Analyzer
Ka-Radio32

4 1 601 4.1 C

esp32 version of Ka-Radio (https://github.com/karawin/Ka-Radio) by jp Cocatrix
SqueezeAMP

5 1 274 2.4

all-in-one audio board, works specially well with LogitechMediaServer
STM32F411_USB_AUDIO_DAC

6 4 223 3.3 C

USB Hi-Res Stereo Audio DAC using STM32F411 / 401 "Black Pill" development board and Texas Instruments PCM5102A / Philips UDA1334ATS DAC modules
yummyDSP

7 1 121 4.8 C++

An Arduino audio DSP library for the Espressif ESP32 and probably other 32 bit machines
ESP32_WebRadio

8 1 66 0.0 C++

An Internet web radio based to ESP32
linkplay-a31

9 2 49 3.1 C

Linkplay A31 WiFi audio module alternative firmware (OpenWrt) and device tree source file

Project mention: OSS/OpenWrt Firmware for Linkplay A31 WiFi Audio Streaming Module | news.ycombinator.com | 2025-12-20
HubAlyzer

10 1 15 5.0 C++

A spectrum analyzer display for HUB75 RGB LED panels and I2S microphones

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

i2s discussion

i2s related posts

OSS/OpenWrt Firmware for Linkplay A31 WiFi Audio Streaming Module

1 project | news.ycombinator.com | 20 Dec 2025
De-smarting the Marshall Uxbridge Bluetooth speaker

2 projects | news.ycombinator.com | 11 Jan 2025
Sound Module Suggestion

1 project | /r/esp32 | 27 May 2023
Trying to figure out how to play an audio file using a ESP32, this is our build, code in the comments. Any assistance?

3 projects | /r/esp32 | 12 Apr 2023
stm32 I2S clocks

2 projects | /r/embedded | 2 Apr 2023
Butting my head against extracting ID3 data and putting it into a JSON/Updating a Web Page

1 project | /r/esp32 | 23 Mar 2023
The "while (Serial.available() > 0)" Block won't pickup on incoming messages sent from Arduino Uno despite them appearing on the Serial monitor.

1 project | /r/arduino | 1 Jan 2023
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www.saashub.com | 15 Jun 2026

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Index

What are some of the best open-source i2 projects? This list will help you:

#	Project	Stars
1	ESP8266Audio	2,364
2	ESP32-audioI2S	1,632
3	NanoVNA	1,347
4	Ka-Radio32	601
5	SqueezeAMP	274
6	STM32F411_USB_AUDIO_DAC	223
7	yummyDSP	121
8	ESP32_WebRadio	66
9	linkplay-a31	49
10	HubAlyzer	15

i2s

Top 10 i2 Open-Source Projects

i2s discussion

i2s related posts

OSS/OpenWrt Firmware for Linkplay A31 WiFi Audio Streaming Module

De-smarting the Marshall Uxbridge Bluetooth speaker

Sound Module Suggestion

Trying to figure out how to play an audio file using a ESP32, this is our build, code in the comments. Any assistance?

stm32 I2S clocks

Butting my head against extracting ID3 data and putting it into a JSON/Updating a Web Page

The "while (Serial.available() &gt; 0)" Block won't pickup on incoming messages sent from Arduino Uno despite them appearing on the Serial monitor.

Index

Did you know that C is the 6th most popular programming language based on number of references?

The "while (Serial.available() > 0)" Block won't pickup on incoming messages sent from Arduino Uno despite them appearing on the Serial monitor.

Did you know that C is
the 6th most popular programming language
based on number of references?