is a free circuit prototyping software that has readily available hardware and software simulation tools. It can simulate various hobbyists microcontrollers including the popular Arduino
, and the Parallax Basic Stamp
As shown below, this software not only simulates the Arduino hardware but also runs the software in the virtual microcontroller.
Virtual Breadboard - Arduino Demo
See the video here: Virtual Breadboard - Arduino Demo
This could become a tool of choice for roboticians building and testing custom circuitry for their robots.
Via Hack n Mod.