PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
Library designed for the Arduino Uno platform and AVRPascal editor
Real Time Electronic Circuit Simulator.
AVR simulator IDE
Electronic design and programming tools suite like Eagle, MpLab
An accurate, scalable, and energy-aware simulator for WSNs
A small microcontroller LED Pin-back button for just 1 $
rp6simul is a simulator for the RP6 robot (AREXX Engineering)