Free real-time operating system (RTOS) for microcontrollers
Function pointers queues classes library for Arduino
A secure, feature-rich, customizable embedded Linux network appliance
Platform operating system designed for the Internet of Things
freeRTOS for Arduino Uno, Goldilocks 1284p & Mega 2560
Real-Time Embedded Operating System
Object-oriented C++ RTOS for microcontrollers
A Full Stack RAD Web Application Development Framework
The extensible bootloader for embedded system
Windows XP reimplemented on Nintendo DS
OpenSPA MOD for OpenPCTV