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Author Topic: Ipac question  (Read 902 times)

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pathdoc2

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Ipac question
« on: October 17, 2003, 12:38:12 pm »
Can the IPAC be programmed to send 2 keystrokes or keys rather than just one with a single button press.  I'm using an IPAC on a nonvideo/arcade project and I need to be able to program it such that pressing one button on the control panel causes 2 keys to be depressed (for example shift and the + key).  Can the IPAC do this?  If not I'll use a KE72 I have in another cab and put the IPAC into that game.
Thanks

RandyT

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Re:Ipac question
« Reply #1 on: October 17, 2003, 12:39:19 pm »

Just hook two inputs to the same button.

RandyT

pathdoc2

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Re:Ipac question
« Reply #2 on: October 17, 2003, 12:41:32 pm »
Pure genius my friend.

grafixmonkey

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Re:Ipac question
« Reply #3 on: October 18, 2003, 01:30:36 am »
If you need to have one button press and then the other press, in a reliable order, then put a decent size (at least 500 uF) capacitor between ground and the button that has to come second.
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Re:Ipac question
« Reply #4 on: October 18, 2003, 09:12:23 am »

Just hook two inputs to the same button.

RandyT
Right, but use diodes if you don't want to lose one input.  In other words - you can program 1B1 to LShift, 1B2 to +, and wire a button to both inputs, but if you also want to have a button wired to 1B1 that ONLY activates Lshift, it will activate now activate both LShift and +, even if only wired to 1B1, unless you use diodes.

See http://www.fraggersxtreme.com/arcadepanels/encoder/keywiz_pausekey.jpg
for a picture of a circuit using diodes for the buttons
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