This is awesome. Thanks for releasing this. <div><br></div><div>Another cool thing to integrate is to automatically check-in to Foursquare or similar. We did this for our RFID system at Alpha One Labs.</div><div><br></div>
<div><a href="http://code.google.com/p/alphaonelabs-r1/source/browse/#svn/a1l-rfid/trunk">http://code.google.com/p/alphaonelabs-r1/source/browse/#svn/a1l-rfid/trunk</a></div><div><br></div><div><a href="http://code.google.com/p/alphaonelabs-r1/source/browse/#svn/a1l-rfid/trunk"></a>psytek<br>
<br><div class="gmail_quote">On Fri, Apr 9, 2010 at 3:58 PM, john arclight <span dir="ltr"><<a href="mailto:arclight@gmail.com">arclight@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi all,<br>
<br>
We've got a preliminary hardware design together finally, along with<br>
the code. Check out the schematic and download links for everything<br>
at:<br>
<br>
<a href="http://23bshop.blogspot.com/" target="_blank">http://23bshop.blogspot.com/</a><br>
<br>
This system uses the Arduino Duemilanova board and so far has been<br>
breadboard tested to support:<br>
<br>
-DS1307 Real-time clock with battery backup<br>
-(2) Wiegand26 reader inputs (optoisolated)<br>
-(4) Alarm zone monitor ports using Analog0..3 (optoisolated)<br>
-(4) Relay outputs, rated to 10A/220VAC<br>
-Spare pins 10..13 to enable Ethernet shield use<br>
-Built in 12V unregulated, 5V regulated, 12V regulated supplies for<br>
alarm sensors, door hardware<br>
-Built in UPS (smart charger in next design)<br>
-Separate fuse protection for everything<br>
<br>
So this will basically allow 2 separate Wiegand26 door readers, 4<br>
independent relay outputs for unlocking doors or alarm sirens, 4<br>
inputs for alarm/other sensors, easy upgrade to Ethernet logging.<br>
(It's currently doing Syslog format via USB serial.) It has a built-in<br>
UPS backup, much like a commercial alarm system and it allows multiple<br>
power buses for motion detectors, fire sensors, etc that are separate<br>
form the logic bus. I also put an EMF kick-back diode in for the door<br>
hardware bus (unregulated 12V).<br>
I would appreciate any feedback in terms of:<br>
<br>
1. What additional features would be nice?<br>
2. Any obvious design flaws.<br>
<br>
Thanks!<br>
<br>
John<br>
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</blockquote></div><br></div>