Main > Main Forum
used all 56 inputs on ipac4, now how do i get 3 admn buttons to work?
<< < (4/5) > >>
Tiger-Heli:

--- Quote from: Thargok on March 14, 2006, 11:32:52 pm ---Shift is the easiest way, just crimp 1+2 player start together so ground triggers both.  That will give you escape.  1 player start + 1 player down is pause. 1 player start + 1 player right is tab.  1pStart+1pLeft is enter. etc.

http://www.ultimarc.com/ipac2.html

If it does seem to work, make the line going to 1 player longer than any others, and hold the button until you get the key press.

Of course you could buy an additional encoder.

--- End quote ---
That won't work - You need the resistor and capacitor circuit b/c the I-PAC sends the shift function on key release - on a KeyWiz, you need diodes or pressing either the shazaaam! button alone or the button that will be shifted will send the shifted input.
Tiger-Heli:

--- Quote from: muffin man on March 15, 2006, 02:31:22 am ---i think i im gonna route 3 wires from 1p select and 3 shift keys for my 3 key buttons. i hope nothing goes wrong. Has anyone done this?

--- End quote ---
See my previous post.

You can do that, but you need the circuit from http://www.mameworld.net/tigerheli/encoder/shiftkeys.htm. 

That will work except for the possibility of pressing 1P and 2P start together and ending a game.

That was what I was getting at initially - when you press a shift button, all the other buttons send their shifted input, so you are better having a dedicated Escape, Pause, and Tab and shifted inputs for 2-4 Player start buttons - then if you accidentally trigger a shifted input, the worst that can happen is you will send an uninteded start input.
Harry Potter:
The keyboard hack sounds like a good idea. Since the buttons are not used in actual gameplay, they shouldn't interfere with anything.
JamIt:
Just a thought, but the three admin buttons you mentioned seem like geared towards mame.  And since there are no 8 button mame games (that I know of at least), couldn't you borrow each player's 8th button (maybe even 7th) for those functions. 
I don't play much consoles, so I'm assuming these admin functions (especially esc and tab) are not applicable.  Of course you may be running these off an emulator in which case they may be and my thought is null.
I think you understand what I'm trying to say, so I'll stop rambling :)
Good luck!
--JamIt
Harry Potter:
That's a good point. My control panel has the same 8 button layout for both players because I couldn't really find anywhere to stick the 8th buttons for admin purposes..

All it ever really gets used for is multi key stroke commands in MAME, so this would be a good solution.
Navigation
Message Index
Next page
Previous page

Go to full version