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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You can always find cheap parts on eBay:<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a
href="http://cgi.ebay.com/Everfocus-EverAccess-ERK-871-NRB-ERK871NRB-Reader-Prox_W0QQitemZ250369120599QQcmdZViewItemQQptZBI_Security_Fire_Protection?hash=item3a4b299957">http://cgi.ebay.com/Everfocus-EverAccess-ERK-871-NRB-ERK871NRB-Reader-Prox_W0QQitemZ250369120599QQcmdZViewItemQQptZBI_Security_Fire_Protection?hash=item3a4b299957</a><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>That seller has a store full of access control goodness. I’m
not sure about the servo-based deadbolt approach, though, at least in an
exterior wooden door. Moisture can make the wood expand and increase to force
necessary to lock/unlock in the NW. <o:p></o:p></span></p>
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font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></a></p>
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<p class=MsoNormal>On Thu, Aug 13, 2009 at 12:24 PM, john arclight <<a
href="mailto:arclight@gmail.com">arclight@gmail.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Hi all,<br>
<br>
I'm working on an open-source "Alarm Shield" for the Arduino.
It will have a 5V/12V bus, NO/NC 10A relays, sensor zone inputs and 2 keypad
inputs. We plan to use the Ethernet shield for event-based logging and
alerting to a remote server. I like the work the Das Labor folks
have done, and I'd like to extend this idea into an easy-to-install
"shield" format.<br>
<br>
We have found reasonably-priced door hardware (US$50-150) that will adapt the
various standard commercial doors to electric locking with minimal
modification. The alarm sensors and assorted hardware are also
inexpensive and robust.<br>
<br>
The biggest challenge I'm having is finding a nice heavy-duty keypad or
keypad/prox-card reader to install outside. I would prefer to use
off-the-shelf Wiegand-26 or a similar published protocol. <br>
<br>
While we could use one of the inexpensive RFID readers, I'd like to be able to
use a keypad for one-time opening codes, letting someone in for the day, etc.<br>
<br>
Does anyone have a source for new or used outdoor keypads that aren't US$250+
each?<br>
<br>
Thanks,<br>
<span style='color:#888888'><br>
Arclight<br>
</span><br>
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