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CHEAP 7USD USB SOLUTION to 2PLAYERS - JOYSTICK AND BUTTONS -> TO PC MAME :)
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NightGod:
And if you are running off of a computer, it's insanely easy to tap into the 5V off one of the drive power supplies.
hanelyp:

--- Quote from: Grasshopper on July 30, 2006, 05:24:19 pm ---Another problem is that not all gamepads have a common ground for their buttons. Some use a scanning-matrix style system.
--- End quote ---
Same problem with a keyboard hack.  Simple solution (for serious electronics people, anyway) is the CMOS 4066 IC, quad bilateral switch.  Turns each signal line from the joystick into a seperate switch ready to interface with whatever encoder you want.
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