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Seeed 125K RFID reader is a module used to read uem4100 RFID card information with two output formats: Uart and Wiegand. It has high sensitivity with maximum 7cm sensing distance. The 4pins of Electronic Brick Interface make it be very easily used with Arduino or Seeeduino.
Features
Selectable output format : Uart or Wiegand
4Pins Electronic Brick Interface
High Sensitivity
Key specifications
Supply voltage: 5v
Max sensing distance: 7cm
Uart output: TTL output, 9600baudrate, 8 data bits, 1 stop bit, and no verify bit.
Wiegand output: 26 bits wiegand format, 1 even verify bit, 24 data bits, and 1 odd verify bit
Documents
Please visit ourwiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.
Hello, I've got 4 questions:
1. In the datasheet, only EM4100 tag is mentioned. Is the reader compatible with EM4200?
2. The older model - RDM630-S - is said to support RS232 communication. ELB149C5M apparently does not. Do you offer an up-to-date module supporting RS232?
3. Wakeup time is crucial for me. How long after powering the module on the tag can be read?
4. Is the module shipped with the antenna? It's not very clear from the site.
Thanks for your answers!
It works with SoftwareSerial instead of HardwareSerial?
Hi,
It works with software serial from arduino?
Link:
http://arduino.cc/en/Reference/SoftwareSerial
http://arduiniana.org/libraries/NewSoftSerial/
Thx.
Do you supply mating connectors for the two connectors in this unit?
Sorry, we do not sell both of connectors separately. If you really want a pcs to put it in your project, maybe you could get an JST 2.54mm to 2.0mm Converter Pack, just cut the cable. (http://www.seeedstudio.com/depot/jst-254mm-to-20mm-converter-pack-p-1030.html?cPath=178)
it looks very nice . I just received mine and I will give it a try this night ! thank's seeed studio !
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Richard Hyde | 2010-11-25
This is a nice little brick that does its job. I plugged it in and it just worked. I have yet to get a mis read out of it so I am suspecting that the protocol is doing decent error detection. I have used it mostly in Uart mode, which is the easiest to test out. I cabled it to an UsbART and started seeing strings of 8 digits appear on the serial line as soon as i brought a tag near the antenna/coil.
The antenna clearly needs careful handling as the wire is quite thin, but it is well constructed and seems to works well. The operational range appears to be around 3 cm ( 1"), so if it is embedded in anything the card/tag will need to place next to the surface. The design will not tolerate too many flexings so it will want to be mounted or carefully handled. On the other hand it has survive me throwing it in a bag and carrying it around so it is not too fragile.
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Jacket Chueng
