Espressif IoT Development Framework. Official development framework for Espressif SoCs.

U8glib library for monochrome displays, version 2

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

Arduino Audio Tools (a powerful Audio library not only for Arduino)

ESP32 Music streaming based on Squeezelite, with support for multi-room sync, AirPlay, Bluetooth, Hardware buttons, display and more

Play mp3 files from SD via I2S

Very Tiny Palmtop Vector Network Analyzer

Fully-featured Doom port for the Raspberry Pi RP2040 microcontroller

Yocto/OE BSP layer for the Raspberry Pi boards

Example on using the ITM/ETM tracing on STM32 (and generally any Cortex-M3)

Time sensitive networking library

the hackerspace global grid

wifi audio on rt5350

DCF77 clock build on MSP430 launchpad