General Purpose port - MSX Wiki
Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 – pagetable.com
File:Atari joy-port.svg - Wikimedia Commons
Reading the Sega Mega Drive / Genesis control pads | PICAXE Forum
How to connect old Atari style joystick to bluetooth PCB? - Electrical Engineering Stack Exchange
Ardunio Micro Joystick Card | The Sim
Joystick - DenialWIKI
![GUIDE] NES Gamepad to Atari Controller - sudomod](https://s20.postimg.cc/db6d4a6v1/tut_06.png "GUIDE] NES Gamepad to Atari Controller - sudomod")
GUIDE] NES Gamepad to Atari Controller - sudomod
Joystick interface for C-16, C-116 and Plus/4 - V1.1
15-pin - Joystick-MIDI-port Layout
C-64 Workshop / Pin Connections
9pin Joystick Controller Cable for Atari 2600 Commodore C64 Vic-20 Ami – RetroArcadeCrafts
D SUB9 <> DIN Joystickadapter for VP/O2
Joystick information and circuits
DB9/DIN6/DB15 joystick pinouts - Classic Computing Discussion - AtariAge Forums
Atari 7800 joypad to MSX Adapter | danjovic | Hackaday.io
D SUB9 <> DIN Joystickadapter for VP/O2
A Keypad Joypad For Your Retro Gaming | Hackaday
Rewiring your +2/+3 Joystick Ports to Atari Standard - Spectrum for Everyone
BYO Atari 7800 Controller - Schematic for dummys - Atari 7800 - AtariAge Forums
Joystick Controller for Commodore - Commodore 64 Brain
Atari-style joystick to PC joystick adapter pinout description @ Pinouts.ru
The Atari joystick Pinout Common Ground. - Atari 8-Bit Computers - AtariAge Forums
