Problems Connecting an Arduino Uno to a Commodore 64 Joystick Port - Retrocomputing Stack Exchange
www.uber-leet.com - Commodore 16 Port Information | Hardware | Emulators | Roms | Games | Download | Free!
Joystick - DenialWIKI
Control Port - C64-Wiki
Joystick interface for C-16, C-116 and Plus/4 - V1.1
Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 – pagetable.com
Reading C64 Joysticks and Analog Signals (Programming Electronics with the Commodore 64 Part 3) - Retro Game Coders
Connectors Commodore 64 – My old computer
File:C64joy.png - SamyGO
Commodore 64 Service Manual: Keyboard, Joystick & Paddle Interfaces
Obsolescence Guaranteed: Converting the 'Commodore 64' DTV
Commodore 64 Joystick Switcher (Revision C) - Share Project - PCBWay
Connectors Commodore 64 – My old computer
DB9/DIN6/DB15 joystick pinouts - Classic Computing Discussion - AtariAge Forums
Amiga mouse - Retronic DesignRetronic Design
Joystick information and circuits
Build your own Commodore 64 arcade stick - a guide - Retro Games Collector
Joystick tester db9 (Commodore 64, Amiga, Atari, etc) - Dreamcast.nu
Joystick with 2 button support - English Amiga Board
Joystick interface for C-16, C-116 and Plus/4 - V1.1
ESD Protection for the C64 Control Ports | hackup.net
commodore 64 - Would a multi button controller have been possible on the C64? - Retrocomputing Stack Exchange
Retro Isle - C64/128 Technical Section
The Keypad Joypad - Amiga, Atari, C64... | Hackaday.io
General Purpose port - MSX Wiki
