[Discuss] [Member Access] RFID Door Access.. Progress update (Action Items).

Ben Hallert - Vipmail EMAIL HIDDEN
Tue Dec 20 11:18:16 PST 2011


I googled em4102 protocol and found this page saying it uses ASK Manchester encoding.  This should be compatible with James' reader.

- Ben

On Dec 20, 2011, at 11:11 AM, Rick Osgood <EMAIL HIDDEN> wrote:

> I think these cards might be compatible with your RFID reader James:
> 
> http://www.amazon.com/RFID-Credit-Card-Tag-125kHz/dp/B005ZZ5Y88/ref=sr_1_fkmr0_2?s=electronics&ie=UTF8&qid=1324407458&sr=1-2-fkmr0
> 
> Is this the reader you are using?
> 
> http://www.sparkfun.com/products/8419
> 
> The RFID cards you linked to on Sparkfun use EM4001 encoding.  The cards I just linked to on Amazon are EM4102 encoding.  I found this Sparkfun forum post that makes me think the EM4102 tags are backwards compatible with EM4001 readers:
> 
> http://forum.sparkfun.com/viewtopic.php?t=1055&view=previous&sid=d8ef0254da035119f9cb9a207be3bc84
> 
> I mention this because I have a 1 month Amazon Prime trial so I can get 2 day shipping on the Amazon tags for free I think.  I think I will order a couple of them and see if they work.  Can you just confirm what RFID reader chip you are using so I can be more confident before spending the money?
> 
> Rick
> 
> On Tue, Dec 20, 2011 at 10:56 AM, Rick Osgood <EMAIL HIDDEN> wrote:
> We should probably coordinate this order so we can all save on shipping charges.
> 
> 
> On Tue, Dec 20, 2011 at 10:33 AM, James Hukill <EMAIL HIDDEN> wrote:
> Sample card (from Kevin) did not work with our reader.
> 
> I got the door striker in the mail today so I would suggest everyone that would like RFID access order one asap.
> 
> --James
> 
> 
> 
> On Wed, Dec 14, 2011 at 2:05 PM, Kevin King <EMAIL HIDDEN> wrote:
> Wait a few days before purchasing any RFID badges.  I have asked the Risk department at my work if I could have (or if needed purchase) the old RFID badges and badge printer.  Earlier this year we moved from cards to fobs and no longer need these.  They are looking into it and hopefully will give me an answer soon.
> 
> -Kevin
> 
> From: Ben Hallert - Vipmail <EMAIL HIDDEN>
> To: James Hukill <EMAIL HIDDEN>
> Cc: "EMAIL HIDDEN" <EMAIL HIDDEN>; Ellery Weber <EMAIL HIDDEN>
> Sent: Wed, December 14, 2011 12:45:43 PM
> Subject: Re: [Discuss] [Member Access] RFID Door Access.. Progress update (Action Items).
> 
> I live that they say 'don't implant it!' but one of the lusted features is 'implantable'.  Make up your mind, guys!
> 
> - Ben
> 
> On Dec 14, 2011, at 12:34 PM, James Hukill <EMAIL HIDDEN> wrote:
> 
>> LOL  .. Wrong, no.. I am thinking of doing it regardless of their warnings...
>> 
>> 
>> 
>> On Wed, Dec 14, 2011 at 12:12 PM, Ellery Weber <EMAIL HIDDEN> wrote:
>> is it wrong of me to really want one of these? lol
>> 
>> http://www.sparkfun.com/products/9416
>> 
>> 
>> 
>> --- Ellery Weber
>> 
>> 
>> On Tue, Dec 13, 2011 at 12:59 PM, James Hukill <EMAIL HIDDEN> wrote:
>> We (Ben, Dirk, Laura, and myself) are quickly making progress and foresee having it* done well before the end of the year.  What we wont' have is enough cards purchased for everyone.  The parts we had on hand to make entry easy and work quickly and cheaply.  The cheapest and easiest way to get them is from SparkFun.com, which is where the reader came from.
>> 
>> I would suggest groups of people go in together to save on shipping and handeling (oh how I was just so recently bit by Digi-Key)...
>> 
>> 
>> 
>> 1 Card($1.95):
>> http://www.sparkfun.com/products/10169
>> 
>> 5 Card Pack($9.95): 
>> http://www.sparkfun.com/products/10436 
>> 
>> 1 Button($3.95):
>> http://www.sparkfun.com/products/9417
>> 
>> 
>> 
>> *It being a RFID reader to do a lookup of known good cards and then open a fail closed electric door striker plate.  No physical "key" will be necessary for members.  As time moves on and we get more hardware we can expand the system to support other methods of entry.  The goal today is to get members in as quickly and as cheaply (equipment cost) as we can while not lowering our security posture in the process.  
>> 
>> 
>> --James
>> 
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