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NFG Forums => Controllers and Joysticks => Controller Technic => Topic started by: InspecteurZ on December 27, 2006, 04:52:34 AM

Title: Invert dual shock 2 axis
Post by: InspecteurZ on December 27, 2006, 04:52:34 AM
It's possible to invert the analog axis on a dual shock 2 controller?
It's easy to do on the digital ones (simply cut some traces and rewire),
but on the analog it's diferent. You have 3 tracks for axis, lower pos, max pos, and current position. Converted to digital it should be a range of 0 to 255.
Lower pos seems to be wired to ground, so it's not a good idea to switch max and lower. Or maybe it's possible?
I don't want to blow up my controller!
Title: Invert dual shock 2 axis
Post by: NFG on December 27, 2006, 08:29:07 AM
It seems to me that the low and high are just GND and Vcc, you should be able to just cut these traces and reverse them.  A potentiometer is just a variable resistor, reversing them should work.

At least, I think it should...  Anyone have any other opinions to offer before the Inspecteur here blows up his pad?
Title: Invert dual shock 2 axis
Post by: TJ_Kat on December 28, 2006, 01:40:01 AM
when he says 'invert the analog axis' i assume he just wants down to be up and up to be down. wouldn't switching the gnd and vcc completly reverse it? like, wouldn't it make right be left and left be right too?
Title: Invert dual shock 2 axis
Post by: NFG on December 28, 2006, 07:46:59 AM
There are two pots in the analogue sticks, one for V and one for H.  If you don't want to reverse both, don't swap the Vcc/GND for both.  Easy!  =)
Title: Invert dual shock 2 axis
Post by: FM-77 on December 29, 2006, 04:15:41 AM
I'm so curious... how come you want to do this? To change the controls in a flight simulator? :-P
Title: Invert dual shock 2 axis
Post by: InspecteurZ on January 07, 2007, 11:36:47 AM
Thanks for the info. It seems to be as Lawrence says.

I want to invert H-camera in FFXII to make it work as in FFXI :P