Analog-Digital PC/C64 Joystick /Wheel adaptor

From: COPLIN, Nicholas. (
Date: 2000-10-11 04:54:53

Hi All,
I've published on my website the circuit for a analog-to-digital joystick
converter. The circuit uses the LM339 comparator chip to truely convert the
resistances (via a voltage divider circuit) to digital inputs (buffered
using an Open Collector chip so as not to interfere with the keyboard
scanning). No PCB design as I used point-to-point wiring for the prototype.

The result is that any PC joystick or wheel can be calibrated to work as a
Commodore joystick and thus all joystick games work with it, without code



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