Subject: From: Date:

Using Keypads Jerry Swords Mon, 29 Nov 1999 00:05:15 -0500

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I would like to control access to my home by installing a keypad next to the
main entrance.  Nothing fancy, just a simple 4-7 digit PIN, that ECS could
check against a list of authorized users.  I could hack some kind of keypad
using X10 or digital inputs via my TC+ or CPU-XA.  However, in initial
testing with all of these methods, button presses would have to be spaced
with a (relatively) lengthy time interval between successive button presses,
and long presses of the buttons.  Even with the TC+, a digital input must be
active for at least 1/2 second, for ECS to detect that the state has
changed.  That could be rather awkward for occasional users.

Is anyone using a digital keypad with ECS for initiating events?  I have
seen serial/USB keypads on the 'net, at reasonable prices, but will ECS
detect button activity on these devices rapidly enough to be used as a quick
access control device?

Any suggestions would be greatly appreciated.

Thanks,
Jerry

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