PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
An advanced network simulator to design and configure virtual networks
The classic RPL programming language reimplemented and reimagined.
Plug&Play Hardware simulation over a virtual bus system.
DNP3 Outstation and client simulator, Source code Library, win, Linux
DNP3 Protocol Source code Library Outstation and client Win Linux
A framework for implementing real-time control systems
Embedded operating system that runs LUA scripts
An accurate, scalable, and energy-aware simulator for WSNs
MIT's spacecraft simulator for control algorithm development
Hardware and software for self-driving vehicles