Lightweight generic ring buffer manager library
Firmware development framework for ATmega/AVR
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
Cross-platform IDE for developing embedded solutions and desktops
A GUI system for embedded systems.
Ada cross compiler and libraries for AVR µCs
A Java VM for ARDUINO and other micros using the leJOS runtime.
AM/PM Digital Reminder (Pets, Pills, etc.)
Electronic design and programming tools suite like Eagle, MpLab
Ethernet stack implementation (currently based on the ENC28J60)
Microcontroller Task Scheduler
SBI - A Small Bytecode Intepreter to run programs on an AVR from SD
Simple AVR OS