I honestly kind of messed up again with the previous version, even after I thought I had caught all my mistakes. What happened was I was trying to reference this one massive schematic that had both the Raspberry Pi and the Arduino mixed together using all these custom symbols. When I actually went to build the PCB from that schematic, absolutely none of the nets were linking up correctly, which completely broke the DRC test and left me with a total mess of errors.

Since I wanted to actually turn in a clean design with solid test results and not just some broken file, I decided to just scrap the board yet again. Honestly, third time’s the charm because I started fresh, completely rewired the whole thing from the ground up, and got everything routing perfectly. I even added some really sick custom silkscreen graphics to the board to make it look legit. The Arduino Mega shield is finally, officially done, fully sorted, and looking great.