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PS2 gamepad hack question
elvis:
--- Quote from: MrQuan on November 12, 2006, 09:22:08 am ---If you have some dual-shocks, or third-parties there, couldn't you just hook up a multimeter and measure the resistance across the analogue sticks when in their 'home' position? Then it would just be a matter of matching that by soldering resistors to the PCB.
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Third parties. And I did exactly that - measured existing analogue sticks out-of-circuit, and replaced them with identical vertical potentiometers in the "home" position. That still didn't work however.
MrQuan:
100k doesn't sound right though??? - I dunno... they are third-party though. I dismantled one of my dualshock2 controllers and measured the resistance. It came out at 4kohms (give or take a few decimals).
I've marked up a photo below to show you how it should be wired, in theory. ;) Of course this is a Sony one, I'm not sure if thrid-parties are vastly different. Anyways, resistors are only a few cents each so it's still worth a try I guess.
elvis:
--- Quote from: MrQuan on November 13, 2006, 02:09:11 am ---I've marked up a photo below to show you how it should be wired, in theory. ;)
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Did you measure in circuit, or out of circuit?
Measuring in circuit yields incorrect measurements courtesy of the analogue trickery going on in these pads.
Measuring a third party pad I pulled apart in-circuit gave me readings of 2K. Measuring out of circuit gave me 100K. The reason is simple: remember the math behind calculating the residence in parallel versus in series.
I'll definitely give your markup a go with some resistors, but I have a funny feeling they will give me the same results.