123D Circuits.io enables beginners to easily get started with electronics. Instead of blowing up a component, you can now experiment freely in the live simulated virtual breadboard environment together with friends without being afraid of breaking something. 123D Circuits.io even allows you to simulate Arduino code along with your electronics to control it all or to learn about programming and Arduino. Let’s admit it, even pros could make good use of such a tool.
Looks like an awesome tool me and my colleagues could use.