Open Proteus and start a new schematic.
Proteus Design Suite is an industry-standard software tool for electronic circuit simulation and PCB layout. While it natively supports popular microcontrollers like the Arduino Uno and Mega, it lacks a built-in simulation model for the 32-bit ARM-based Arduino Due. arduino due library for proteus free download
Open Proteus and create a or open the Schematic Capture workspace. Click on the Component Mode icon on the left toolbar. Open Proteus and start a new schematic