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Yes you can double-up inputs using shift on an I-PAC

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WiZeR:

--- Quote from: AndyWarne on November 14, 2003, 07:04:01 pm ---I have done a schematic, need to get some words around it:
http://www.ultimarc.com/extra_shift.html

Andy

--- End quote ---

That would be great, also a photo of how it actually looks for the less able among us (me).

JustMichael:
I was wondering why the oscillator in the circuit?  Wouldn't just the diodes be enough?

_Iz-:
The I-Pac requires the shift key to be activated a few milliseconds before any other key for it to work. The resistor and capacitor create a delay on the function button so the shift key activates first.

Andy - do you have any idea how quickly you can do repeated keypresses on this new "button"? Is the wait time neligible or significant? (I assume it takes a bit of time for the capacitor to bleed down, and you wouldn't get the delay required to properly activate the circuit again until the cap was bled down enough)

tmasman:
I stand corrected...   :P

It's not as easy as I was thinking it would be...
Hm...
I'll just wait for Andy's write up before I make a bigger fool of myself... ::)

_Iz-:
One other thing to be aware of with the i-pac shift function. The shift *never* activates if any other function is being activated when it (shift) is activated. When you hit the shift key, it checks first to see if any other terminals are activated, if they are it ignores the shift press (I assume this is so it doesn't disturb other players by shifting their actions). I believe this is also opposite how the keywiz works. Pressing the "shazzam" (shift) key on the keywiz immediately puts the entire panel in shifted mode until it is released regardless of what is happening on it.

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