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Home | Product Categories | ID | SEN-08709

RFID Reader ID-2 (125 kHz)

sku: SEN-08709 RoHS Compliant In Eagle Library

Description: This is a compact and easy to use RFID reader module. The ID-2 is a smaller module requiring an external antenna. Hook up an antenna, power the module, hold up a card, and you'll get a serial string output containing the unique ID of the card.

Features:

  • 5V supply
  • 125kHz read frequency
  • EM4001 64-bit RFID tag compatible
  • 9600bps TTL and RS232 output
  • Magnetic stripe emulation output

Dimensions: 19x21mm

Documents: Datasheet

Pricing

In stock

25.95
23.36
20.76

56 in stock

price
10-99
100+



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images are CC BY-NC-SA 3.0

ASCII version


Comments 15 comments

  • Mister Chris | about 3 years ago 1

    The datasheet list a read range of up to 25cm using an external antenna, but I haven’t been able to locate one on Sparkfun. (I’m not entirely sure what I’m looking for to be honest, so I’m off to search a series of tubes:) Does Sparkfun sell an external antenna compatible with the ID-1?

  • alexsimps | about 2 years ago 1

    Have one of these readers and am also looking for a compatible antenna?

    • MikeGrusin | about 2 years ago 1

      The ID-2 requires an external antenna; the ID-12 and ID-20 have built-in antennas. We don’t sell antennas for these, since they’re just a coil of wire most people just wind their own. The datasheet has some information on doing so, and there are also examples on the internet.
      Unless you’re interested in antenna theory or are trying to solve a specific problem, the ID-12 and ID-20 are much easier to use right out of the box.

  • smartroad | about 2 years ago 1

    is there anyway to increase the range of this? I need about 1-2 meters. My friend runs a small off road enduro race, I was looking at finding a way to time the riders cheaply. RFID seems an ideal solution but I need a greater range then these can provide. Been looking but not sure if it is safe to use an antenna bigger then the 15cm square the datasheet suggests.

    • MikeGrusin | about 2 years ago 1

      Trust me, we’d love the same thing. The problem with increasing the range of the ID-2 is that since it’s really a low-power radio transmitter, it’s limited in the size of the antenna it can drive. To get longer ranges (and bigger antennas, such as something you could put beneath the finish line of a race), you need more power.
      I’ve seen open-source RFID reader designs out there on the net, which could theoretically be beefed-up to get longer range and drive larger antennas (assuming you know something about the black art of RF and antenna design). But since the ID products are (A) proprietary and (B) encased in epoxy, it’s unlikely that they could be easily modified. (I’ve learned not to underestimate our customers though; if anyone can do it, let us know and we’ll bask in your glory!)

  • Mersennse31 | about a year ago 1

    Hello,
    I was curious to know if and how the range of the RFID readers, esp ID-12 can be increased?

  • Diaz | about a year ago 1

    question!, is this RFID gives a TTL USART OUTPUT??, can you read this with a simple 16F877 PIC Microcontroller??
    i may buy this for industrial proyects

  • smartroad | about a year ago 1

    I found a website that said about calculating the size/shape and inductance for an RFID antenna but can’t find it now! Has anyone else found such a site?

  • kevindtimm | about a year ago 1

    Coil winding info (page 5 of the .pdf)
    http://www.corerfid.com/coreDocs/CoreIDSpecs.pdf

  • aremu | about a year ago 1

    Please the data sheet is not clear to me.Is it that I can connect to my PC serial port directly without max232?And which of the pins because I can see D1 and D0.What about tune capacitor?

  • Shruti | last year 1

    Hi could anyone tell me if the RFID Reader ID2 is detects RFID Buttons or not

  • Arandy | last year 1

    Hello,
    somnicro sells some 125KHz anntenna coils here:
    http://www.sonmicro.com/en/onlinestore/index.php?option=com_virtuemart&page=shop.browse&category_id=13&Itemid=43
    The company is the same who produces the SM130 module sold here. It produces the SM125 aswell and 13.56MHz PCB antennas too.
    I wonder if those 125KHz antenna is suitable for all ID-XX products.

  • Member #216071 | about 11 months ago 1

    Hello,
    a question relating to the demonstration video here
    Does it read 2 tags/cards one after another, if the tags/cards are not put together in stack?
    Also i found another limitation of using 2 or more readers in the same range from http://bildr.org/2011/02/rfid-arduino/
    It says “more than one reader right next to each other can cause none of them to work due to interference."
    Anyone has a solution for using 2 readers (next to each other) to read 2 cards?
    Thanks

  • jhincapie | about 8 months ago * 1

    Hello all, if you are in need of small antennas (less than) 10cm range at 1.08mH, please read my blog post on the topic (blog.jhincapie.com/2011/07/09/antennas-for-id-2/). There are basically two vendors out there that I know of, I have tried them both, and they work perfectly.