Double-click the Arduino on the Proteus schematic. A pop-up window appears:

Using Proteus 8.9 SP2 Professional alongside Arduino 1.8 (free or paid) fundamentally changes how you learn embedded systems.

In the world of electronics prototyping, two tools stand out for their accessibility and power: Proteus for circuit simulation and Arduino for embedded development. The combination of Proteus 8.9 SP2 Professional with Arduino 1.8 creates a virtual electronics laboratory, allowing you to design, program, and test microcontroller-based systems entirely in software—without any physical hardware.