xarcade tankstick button wiring?

[Yuskis1]

I have an arcade tankstick and I am getting ready to build my arcade cabinet soon.  Im so excited!  while planning it out i have come up with an idea to add extra buttons to the machine for "pause" and "exit"  currently to pause you have to push the 2 trigger buttons together.  To exit, you have to push player one and the left trigger buttons together.  Would their be a problem to just run a second set  of wires to each of the 2 buttons and link them to one button so that when pressed it would actually be like pushing the 2 buttons simultaneously?  i don't want to risk shorting anything out so i thought i would ask first.  I hope this makes sense what i am asking.  Thanks for the help.

[PL1]

If you want to press 1 button (button C) to ground 2 inputs (buttons A and B) at the same time, there are two ways to do it.

1. Wire buttons A and B "backward" like "Up", "Down", and "P1 U+D" in this diagram:
- Encoder input connected to COM (buttons A and B)
- Ground connected to NO (buttons A and B)
- Connect the NC from buttons A and B to one side of switch C ("P1 U+D") and ground to the other.



2. Use diodes like this diagram:

If connected without the diodes, pressing either the top or bottom button will complete both circuits.

With the diodes:
- Pressing the top button completes the top circuit
- Pressing the bottom button completes the bottom circuit
- Pressing the center button forward biases both diodes and completes both circuits



NOTE: The one thing that could make this difficult is that the XArcade encoder uses a different ground for each connector IIRC.  Not sure if the "two trigger" buttons you describe use the same ground.   


Scott

[ark_ader]

You might run into issues if you decide to employ all the external console adapters.

[BadMouth]

The Tankstick has one unused lead from the trackball harness that will post as the middle mouse button.
I ran that to a dedicated exit button.  Just remap the cancel button to the middle mouse in MAME.
For other emulators, I have an autohotkey script run at bootup that posts ESC when the middle mouse button is pressed.

Code: [Select]

mbutton::esc

[Yuskis1]

Thanks for the feedback so far guys.  ill have to experiment with it and see how it all works out. 

from what I'm hearing though is that i don't have to worry about things getting shorted out or burning up on the button controller then.  am i correct?

that is my biggest fear since i have heavily modified the whole thing. 

[Yuskis1]

can you repost that first picture of the wiring diagram because it didn't load? 

[PL1]

can you repost that first picture of the wiring diagram because it didn't load? 

Sorry about that -- it was still showing up for me, but I might have originally linked it from a restricted "Friends of KADE" forum thread.   

Uploaded the original image file to that post.


Scott