Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP…

BlackHole is a modern macOS audio loopback driver that allows applications to pass audio to other applications with zero additional latency.

Locally run an Instruction-Tuned Chat-Style LLM

Open Source Soldering Iron firmware

Simple unit testing for C

ZMK Firmware Repository

The official git repository for Contiki, the open source OS for the Internet of Things

Pure Data as a plugin, with a new GUI

Pure Data - a free real-time computer music system

EPDiy is a driver board for affordable e-Paper (or E-ink) displays.

simavr is a lean, mean and hackable AVR simulator for linux & OSX

ATTiny usb bootloader with a strong emphasis on bootloader compactness.

An ESP32 based node for gathering indoor positioning and transmitting to mqtt

sound synthesis library for Arduino

Light weight library to control WS2811/WS2812 based LEDS and LED Strings for 8-Bit AVR microcontrollers.

A tiny JavaScript runtime for RP2040 (Raspberry Pi Pico)

ATtiny microcontroller support for the Arduino IDE

For interfacing with Windows/macOS/Linux using an ESP32, a touchscreen and BLE.

A compact, embeddable scripting engine for applications and microcontrollers for executing programs written in a subset of the JavaScript language.

A keyboard firmware platform in PicoRuby

A Juno-inspired dual oscillator

M5StickC Arduino Library

Online GUI for QMK Firmware

Open-source and open-hardware scientific RPN calculator

A simple to use 4 polyphonic wavetable synthesizer library for Arduino.

Advanced arduino based firmware for TEF6686 with ESP32

Demo code for the Raspberry Pi Pico

Miniature driver modules for IN-12 and IN-14 Nixie tubes