[simpits-tech] Keyboard encoders

dphens simpits-tech@simpits.org
Thu, 22 May 2003 07:24:03 -0700 (PDT)


OK. I think I understand the matrix concept now. You can have 5 switches
with one side of each switch connected to the same connector (conn 1). But
then the other side of each connection would go to it's own connector (conn
2,3,4,5,6). So whenever a switch was thrown you would get one of the
following - 1-2, 1-3, 1-4, 1-5, or 1-6. That right??

 

>On Thu, 22 May 2003 19:22:55  1200 "Stuart Whelan"
<stuart@simhardware.co.nz> wrote.
>Think of a matrix like a keypad on a alarm or ATM money machine. You
>only ever push one button at a time, so the system can scan the buttons
>in a way that it could not do if more than one button was pressed at
>once.
>
>If you want a example, sing out, I am in a bit of a hurry at the moment
>and I will post a better reply if this one doesn't suffice. :)
>
>Cheers,
>Stuart Whelan
>Simulation Hardware LTD
> 
>> -----Original Message-----
>> [mailto:simpits-tech-admin@simpits.org] On Behalf Of Dave Hensley
>> Sent: Thursday, 22 May 2003 3:50 p.m.
>> Subject: [simpits-tech] Keyboard encoders
>I don't know the difference between "discrete contact closures" and
>"matrix switches " though. Anyone help me out on that?
>
>Thanks for any help!!
>
>Dave
>
>
>
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