Joystick interface for C-16, C-116 and Plus/4 - V1.1
DIY) USER PORT DONGLE for C64 586220 DIAGNOSTIC CARTRIDGE - Share Project - PCBWay
Retro Joystick CPC Adapter
commodore 64 - Would a multi button controller have been possible on the C64? - Retrocomputing Stack Exchange
Control Port - C64-Wiki
Reading C64 Joysticks and Analog Signals (Programming Electronics with the Commodore 64 Part 3) - Retro Game Coders
Reading C64 Joysticks and Analog Signals (Programming Electronics with the Commodore 64 Part 3) - Retro Game Coders
Problems Connecting an Arduino Uno to a Commodore 64 Joystick Port - Retrocomputing Stack Exchange
Retro Isle - C64/128 Technical Section
Arduino Project: Commodore 64/Amiga, Atari 2600/XL/ST, ZX Spectrum Joystick to Windows/Linux (RetroPie) USB | jfrmilner's Tech Blog
Making a Joystick for C64 or Atari | Kosciusko Media
![Homebrew C64 "Paddle" Box : 4 Steps - Instructables](https://content.instructables.com/FUG/BYFZ/FGY0OSQ5/FUGBYFZFGY0OSQ5.jpg?auto=webp&frame=1&width=320&md=ec49c266fa18ffc9d5261d5388a399d9 "Homebrew C64 "Paddle" Box : 4 Steps - Instructables")
Homebrew C64 "Paddle" Box : 4 Steps - Instructables
$3.00 Goodwill find: Removed all electronics from an old PC gamepad and rewired it for use with Commodore computers. : r/c64
Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 – pagetable.com
Making a Joystick for C64 or Atari | Kosciusko Media
Reviving an old joystick with an Arduino Leonardo | It's Every Bit For Itself
Connectors Commodore 16 – My old computer
General Purpose port - MSX Wiki
Technical corner
C-64 Workshop / Pin Connections
