Build Your Own Arcade Controls Forum
Main => Main Forum => Topic started by: rhoelsch on January 08, 2017, 10:54:05 am
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I have a 2-person cab, with a joy and 8 pushbuttons for each side. The entire panel shares one ground. For one side, I hacked a PSX pad to play more modern fighters on (via console, not emu). The control output is switchable between IPAC and console pad via an A/B switch. Works perfectly.
I'd like to add another pad for the 2nd side. Must I reconfigure my ground to be separate for the 2nd side, or can I still share the 1 ground as it exists for both PSX pads? I'm pretty sure the IPAC has a 2nd ground output, so the PC part would be fine, but must I have a unique ground for the 2p side?
If that makes sense... thanks!
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The ground is always the ground... like in a car, everything metal is ground. It doesn't matter where you connect ground since everything is ground.
The PSX pads, I assume the hack is just connecting the control surfaces (direction and buttons) not including any of the serial logic circuitry?
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That is correct. So I can leave the entire cp daisy chained together and leave the ground on the 2nd pad alone then?
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The ground is always the ground.
Most of the time this is true, but there are a few encoders like the X-Arcade (https://shop.xgaming.com/collections/arcade-parts/products/two-player-complete-do-it-yourself-arcade-kit) and some gamepads that use isolated grounds.
For example, if you touched an input from one wire group of the X-Arcade encoder to the ground of another wire group, the encoder would register the input as the corresponding input from the ground-wire's group.
The good news is that if there were isolated grounds on the specific gamepads that Rhoelsch is hacking, problems would have shown up when testing the first gamepad hack. ;D
Scott
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Yeah, I was assuming that the hack was directly to the controls/switches - not via the pad circuitry/logic.
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the Ground I'm standing on is the same Ground you standing on and so on and so on . . . Hey we're all connected :)