Joystick Controller for Commodore - Commodore 64 Brain
Commodore Info Page - Articles: C64 - DTV2 with IEC, keyboard and joysticks [en]
Control Port - C64-Wiki
Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 – pagetable.com
Tube Time on Twitter: "the left one is a Commodore 1351 mouse designed for a C64/C128, while the right one is meant for an Amiga. the pinouts are very close and neither
D SUB9 <> DIN Joystickadapter for VP/O2
ESD Protection for the C64 Control Ports | hackup.net
amiga mouse pinout – TruMouse.com
Making a Joystick for C64 or Atari | Kosciusko Media
Joystick interface for C-16, C-116 and Plus/4 - V1.1
commodore 64 - Would a multi button controller have been possible on the C64? - Retrocomputing Stack Exchange