An USB programmer for PIC, dsPIC, AVR, serial memories
freeRTOS for Arduino Uno, Goldilocks 1284p & Mega 2560
A GUI system for embedded systems.
Cross-platform IDE for developing embedded solutions and desktops
A C++ library for AVR and NodeMCU
Low power application-configurable Operating System
BASIC-like language interpreter for embedded systems
Specialised variant of GRBL focused on motion of up to five axes
Linux Audio Converter / Tagger / CD Ripper
amforth is an extendible interpreter on microcontrollers
Open-source RTOS and Embedded Systems Toolkit for C++ and C
Keyboard firmware for Atmel AVR and ARM controllers
EtherCard is an IPv4 driver for the ENC28J60 chip
PRTOS is a simple, compact preemptive RTOS for embedded systems
A Windows based GUI for popular avrdude command line utility