The pinout diagrams are simple ... The project was inspired by forum member Graynomad's Arduino Due diagram, so be sure to grab that one as well.

On the Giga and Due, they're on D2 to D13 ... If your board has no printed labels, check out its pinout diagram documentation (found on the board's Arduino Store page). PWM pins in the diagram ...

Not exactly schematics, but [Duckman] has some Arduino pinout diagrams he made using ASCII-art. These could be useful when pasted into source code as comments, documenting the pinouts for your ...