Joystick information and circuits
commodore 64 - Would a multi button controller have been possible on the C64? - Retrocomputing Stack Exchange
Atari joystick port - Wikipedia
Joystick interface for C-16, C-116 and Plus/4 - V1.1
amiga DB9 port – TruMouse.com
How to build an Amiga Joystick to USB adapter (DB9 to USB) - Retro32
Atari – Kempston Joystick Pinout diagram. – JamBlog!
A Keypad Joypad For Your Retro Gaming | Hackaday
Atari 7800 joystick - Retronic DesignRetronic Design
Retro 9 Pin Joystick to USB Converter : 4 Steps (with Pictures) - Instructables
Atari – Kempston Joystick Pinout diagram. – JamBlog!
C-64 Workshop / Pin Connections
Radio Shack Avenger 700 Joystick - 2 row 15 pin connector - Project Guidance - Arduino Forum
The Atari joystick Pinout Common Ground. - Atari 8-Bit Computers - AtariAge Forums
Infrared Remote Control for All F/G CED Players
Interfacing with Video Game Controllers - Circuit Cellar
Connectors Commodore 128 – My old computer
TRS80 Color Computer 1/2/3 Dragon 32/64 Atari Joystick Adapter Free Ship ! | eBay
Reviving an old joystick with an Arduino Leonardo | It's Every Bit For Itself
15/9 pin controller converter
Retro Isle - Spectrum Joysticks
D SUB9 <> DIN Joystickadapter for VP/O2
Joystick Pinouts
Reading the Sega Mega Drive / Genesis control pads | PICAXE Forum
Atari-style joystick to PC joystick adapter · AllPinouts
