Unlike the template for the Arduino Uno that comes with Kicad 5, this contains the full schematic for the Uno as a sub-sheet as well as the Uno's BOM. The main sheet has connections to the subsheet ...

Now let’s have a look at the Arduino UNO Schematics. The below circuit diagram, clearly shows all how the various components are connected to design an Arduino UNO board. Here is the power section of ...

(After noticing this change, we went back and compared the “rev3” Uno schematics PDF on arduino.cc to the “rev3E” schematics on arduino.org. Yup, same change in the legal notice.) ...