WS2812 FX library for Arduino and ESP8266
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
DNP3 Protocol Source code Library for Linux x86 x64 ARM PowerPC
Symja - Java computer algebra language & symbolic math library
Mixed Integer Linear Programming (MILP) solver.
A multi-modeling and simulation environment to study complex systems
Your language to speak with all.
Electronic design and programming tools suite like Eagle, MpLab
Modular CNC software for Arduino controller
Ready-to-use appliance for GIS, Data Mining and Analysis, Modelling...
DRINKS is a set of smart web-based widgets.