: Users can write code in Arduino C++ and fully simulate the entire system, including debugging the interaction between the code and physical hardware components.

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Proteus 8.9 Professional streamlined this workflow. It offers tighter integration where the schematic can be linked directly to the source code, allowing for . You can actually pause the simulation, step through your C++ code line-by-line, and watch the virtual LEDs change state or the LCD characters update in real-time. This turns the software into a powerful educational tool, effectively acting as a "microscope" for your code.