RetDec is a retargetable machine-code decompiler based on LLVM
Fast streaming XML parser written in C99 with >90% test coverage
Hot Reloading for Swift applications
Lightweight generic ring buffer manager library
A free COBOL compiler
An USB programmer for PIC, dsPIC, AVR, serial memories
A GUI system for embedded systems.
A simple LLVM frontend to Forthlang - my own simple dialect of Forth
Software build-automation tool written in Common Lisp
BASIC-like language interpreter for embedded systems
Linux Audio Converter / Tagger / CD Ripper
amforth is an extendible interpreter on microcontrollers
Keyboard firmware for Atmel AVR and ARM controllers
A Java VM for ARDUINO and other micros using the leJOS runtime.
Self-contained tool for compiling and uploading Arduino sketches
Open Source for Internet of Things
beamshot octave scripts and bike light driver
Vanyamba Electronics library of C++ Classes for AVR.
Electronic design and programming tools suite like Eagle, MpLab