For breadboarding your next great Arduino-powered robot, maybe not so much. If you remember Circuits123 (or circuits.io), this is the same underlying technology.

Tinkercad, the free browser-based app from Autodesk that teaches students design, engineering, and coding, has made its student electronics design platform work seamlessly with Fusion 360, a ...

It allows you to simulate analog circuits, LCDs, stepper and servo motors and can include programmable PIC or AVR (including Arduino) processors in your simulation.