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…

MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems

H2O - the optimized HTTP/1, HTTP/2, HTTP/3 server

The pattern matching swiss knife

Beanstalk is a simple, fast work queue.

A command-line based markdown presentation tool.

Transparently tunnel your IP traffic through ICMP echo and reply packets.

FuzixOS: Because Small Is Beautiful

Keen Dreams on Greenlight!

Small tool to display chats from the Android msgstore.db database (crypt12)

Implementation of C++ standard libraries in C

Lunar lander type game with computational fluid dynamics

Ganglia Monitoring core

A small CoAP implementation for microcontrollers

ARM related stuff

A mirror of the sc spreadsheet calculator source

A custom firmware to transform the ESP8266 wifi module into a wifi http based switcher

Turn your non-ADB NeXT keyboard into a USB keyboard with an Arduino Micro!

Make a good PS/2 keyboard to USB adapter from an ATmega32u4 [Adafruit breakout board]

Based on JCW glcdlib for ST7565 LCD's, adapted for Vatronix LCD