A PHP extension for Redis

An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino

Threading for PHP - Share Nothing, Do Everything :)

Adafruit GFX graphics core Arduino library, this is the 'core' class that all our other graphics libraries derive from

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

STM32 stuff