Build Your Own Arcade Controls Forum
Main => Main Forum => Topic started by: Yuskis1 on February 14, 2014, 12:46:43 am
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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.
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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.
(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=137757.0;attach=306871;image)
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
(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=122265.0;attach=260464;image)
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. :dunno
Scott
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You might run into issues if you decide to employ all the external console adapters.
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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.
mbutton::esc
(http://farm3.static.flickr.com/2677/4414739475_9e17b9f40b_b.jpg)
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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.
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can you repost that first picture of the wiring diagram because it didn't load?
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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. :embarassed:
Uploaded the original image file to that post.
Scott