A Keypad Joypad For Your Retro Gaming | Hackaday
Repair Atari 2600 that did not work with paddles - Problems and Solutions - Skooter Blog
Joystick PC Gameport · AllPinouts
File:Atari joy-port.svg - Wikimedia Commons
Reading the Sega Mega Drive / Genesis control pads | PICAXE Forum
The Atari joystick Pinout Common Ground. - Atari 8-Bit Computers - AtariAge Forums
How to connect old Atari style joystick to bluetooth PCB? - Electrical Engineering Stack Exchange
D SUB9 <> DIN Joystickadapter for VP/O2
Dragon 32 Joystick adapter | Vrai's Retro Stuff
Interfacing with Video Game Controllers - Circuit Cellar
Atari 7800 joypad to MSX Adapter | danjovic | Hackaday.io
D SUB9 <> DIN Joystickadapter for VP/O2
Making a 9 Pin Joystick Cable (for Sega Genesis, Commodore 64, ColecoVision, Atari, etc.) - YouTube
Radio Shack Avenger 700 Joystick - 2 row 15 pin connector - Project Guidance - Arduino Forum
C-64 Workshop / Pin Connections
Winterground Fairlands - A World Of Funmagineering!: Retro Challenge 2015/7 - Amiga Mouse, Joystick, Keyboard USB interface
