Quick question about ASC/KOC style wiring

Alex · 11-27-2006, 04:49 PM

This is a pretty quick question. When a Guitarfreaks controller is wired up, or a board is simulating it at least by having left and right soldered on, will it accept both up and down as picking directions, or will it only accept up?

Whether or not I get a response I'll be testing out this question later tonight, but I wanted to see if anyone else knows before I go forging blindly into destiny... or something.

In short, my problem is this: I wired my Guitar Hero controller to be a Guitarfreaks controller. Pretty simple process, just time consuming. The button mapping I had told me to wire pick to up, so both internal microswitches of the controller are wired to up. Problem is this: When you pick really really fast (Like GF tends to make you do) the microswitch doesn't have enough time to release, and the other switch is depressed before the connection is opened again. The end result? The pick cuts out briefly, because so far as the game can tell you stopped picking.

I can also take some pictures of my wiring, if anyone's interested, since I'm going to have to do something while the soldering iron is heating up anyway, haha.

**dieKatze88** · 11-27-2006, 06:07 PM

Quote:

Originally Posted by Dewgy

This is a pretty quick question. When a Guitarfreaks controller is wired up, or a board is simulating it at least by having left and right soldered on, will it accept both up and down as picking directions, or will it only accept up?

Whether or not I get a response I'll be testing out this question later tonight, but I wanted to see if anyone else knows before I go forging blindly into destiny... or something.

In short, my problem is this: I wired my Guitar Hero controller to be a Guitarfreaks controller. Pretty simple process, just time consuming. The button mapping I had told me to wire pick to up, so both internal microswitches of the controller are wired to up. Problem is this: When you pick really really fast (Like GF tends to make you do) the microswitch doesn't have enough time to release, and the other switch is depressed before the connection is opened again. The end result? The pick cuts out briefly, because so far as the game can tell you stopped picking.

I can also take some pictures of my wiring, if anyone's interested, since I'm going to have to do something while the soldering iron is heating up anyway, haha.

it only accepts up. You could bridge the center pins from the microswitches on your GH board to solve this. Install a switch in the center of the wire to turn it off for guitar hero play.

Alex · 11-27-2006, 06:57 PM

Would that actually work though? If the issue is that one isn't fully releasing before the other is depressed, then wiring them both to the same button is the problem, not how they're wired to it.

EDIT: I've also pretty much given up on making it bimodal with my current way of doing the mod, because GHII wouldn't accept the controller wth the way I've done it.

Dan. · 11-28-2006, 04:47 PM

If you don't mind me asking, how did you modify the GH controller so that the 'left' direction is no longer always being held down? I want to mod my controller that way so I can actually choose songs in GF Silver/V2.

Alex · 11-28-2006, 05:12 PM

Sliced all the cables on the inside, crammed a dualshock board in there and rewired. Pretty, no, but it works, haha.

Dan. · 11-28-2006, 07:09 PM

Gah damn, I was hoping for an easier solution. Maybe i'll open up one later and take a look.

Alex · 11-28-2006, 08:05 PM

You won't have any luck. The controller holding left down is done via a resistor altering the current flow. Best thing to do would be to look up the exact resistance value for holding down left and right simultaneously and install an additional one in there that makes it do both instead of just left, and then a switch that enables/disables it. That's really your best option.

Because the GF controller actually holds down left and right to identify itself, where I think you're trying to make it act like a normal controller, which isn't what you want to do. :P

**dieKatze88** · 11-28-2006, 08:10 PM

Quote:

Originally Posted by Dewgy

Would that actually work though? If the issue is that one isn't fully releasing before the other is depressed, then wiring them both to the same button is the problem, not how they're wired to it.

EDIT: I've also pretty much given up on making it bimodal with my current way of doing the mod, because GHII wouldn't accept the controller wth the way I've done it.

No I dont believe thats a problem, as both switches are neutral at no direction. To be true to this, both switches would be on at neutral.

Wiring both to up would give ample time to release one switch before contacting an other IMO. Considering the switch is pretty much forced into coming up.

Alex · 11-28-2006, 08:18 PM

Trust me, the spring on the switch is not depressing quickly enough to compensate the level of picking. The whole deal is they're not supposed to be on at neutral, but when you pick fast enough they're on simultaneously for a fraction of a second, which keeps the connection closed. If the switches had a little less travel from on to off, this wouldn't be an issue, but as it stands they aren't meant to be wired to the same button.

EDIT: And after talking to Random for a bit, sounds like there's no way to use just a resistor to change the current flow, since it's almost completely undocumented.

rmz · 11-28-2006, 10:01 PM

LOL @ all of the people who said "yeah mang I just undid the solder point on my GH controller to make it work, no I won't make you a guide you stupid fuck you should be able to figure it out"

Looks like they were all lying cocks.

Alex · 11-29-2006, 12:14 AM

Quote:

Originally Posted by rmz

LOL @ all of the people who said "yeah mang I just undid the solder point on my GH controller to make it work, no I won't make you a guide you stupid fuck you should be able to figure it out"

Looks like they were all lying cocks.

Yes indeed they were. My GH>GF conversion has a Dualshock PCB crammed in it, haha. However I may be working on a solution in the near future thanks to some stuff Random is sending me, so I will keep all y'all informed

torikame · 11-29-2006, 10:42 PM

i have exactly the same problem. i used a dualshock PCB in mine too. hope you or someone comes up with a solution soon

btw, the reason your guitar wont work on GH2 is probably because you used a dualshock2 (PS2) controller. the way GH2 recognizes the SG controller (aside from the shorted left button) are non-analog buttons. try using a PSone controller

Alex · 11-29-2006, 11:49 PM

Is that really the only difference? I heard that it wouldn't work on any third party controller and it had something to do with the GH controller's exact voltage readout. However, if what you say is true, then I could really easily wire in the toggle switch to change modes like I originally planned. Thanks for the tip!

torikame · 11-30-2006, 01:29 AM

yup. you can try by using a PSone dualshock controller and hold left. GH2 will recognize it as a guitar

sparky · 12-04-2006, 09:45 AM

If you wanted to emulate the dead center of the analog stick, it is possible to stick a resistor in there had have it read as the dead center. I'm having a hard time finding out the resistance value for the analog stick on PS2, but if it's a 10K ohm potentiometer, you can put a 5K ohm resistor in the circuit and it will read in as the center. If it's 100k, use 50k, and vice versa. I'm not sure on how the wiring is done on the GH contoller, but it seems like there is either no resistor, or a resistor that's under 5K wired in (if it was over 5K, it'd be going to the right). It's not difficult to put in a switch that can choose which resistor to use.