Browsing had.io pages I've stepped on the amazing #Zorkduino project wich implements a Z-Machine to play text adventure games (like Zork!).

The original project is very cool but it was build upon some ready made modules and a proto-board, so I've decided to route an specific board for the project named ZorkShield.

The board was designed to allow the assembly of both SD or MicroSD card slots and also allow the assembly of either a P2 stereo jack or a dual stacked RCA female for audio and video.

The video output have been slightly modified so the voltage and output impedance follow the RS-170 standard (like #VGA Blinking Lights). As a late time improvement I've added a RESET button.

Despite the board is a double layer It can be etched at home using tone transfer.

The layout was uploaded to OSHPARK but soon I'll upload it to github.