Posted by Druin on 1, 2000 at 5:32 PM:
In Reply to: Re: Rotary Joystick to MAME interface for sale posted by Jason on 1, 2000 at 9:24 AM:
: Did you design this yourself? If not where did you get it originally? (info for waranty/repair purposes)
I designed it and built it and with the unit will come a schematic for any wire path tracing if necessary since I know how terrible it can be to figure out someone else's work. Also provided will be information on how the joystick cable and pins are laid out (the joystick cable is not straight through, the wires get remapped between the joystick and circuit board side)...and I can be contacted for any support required. I even designed it with jumpers that can be removed near the output stage so that the 4 control signals (player 1 and 2 clockwise and counterclockwise) can be re-routed to an aux. circuit for driving other loads such as relays, or more importantly, triggering other logic circuits for things like maybe a pulse stretcher to simulate holding the keys down longer, or a one-shot circuit that can take the existing pulse signals and do a shorter trigger and lock out the remaining high-level of the existing signal...thus converting the outputs into longer or shorter on-times.
That will be outlined in the manual with the unit. So it is basically a board that accepts the joystick cables, routes them to the microcontroller, and then the resulting signals are routed to a jumpered path where they can proceed to drive the existing output switches/screw terminals, or interface with another circuit and then optionally route back to the screw terminals.