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Wednesday, September 29, 2010

RFID reader

Found some info on RFID readers that i'm making note of

http://www.instructables.com/id/Weather-proof-Bluetooth-capable-RFID-reader/

makes use of
http://www.sparkfun.com/commerce/product_info.php?products_id=8419
http://www.sparkfun.com/datasheets/Sensors/ID-12-Datasheet.pdf

Also found this on Ebay.   A little too much to spend at $59, but it has some info on how they work.
Still thinking about building a fun project to detect who is in my office by reading their badges.

Datasheet at
http://www.rfidshop.com.hk/datasheet/T5567/HI-R-W26-W2%20Datasheet.pdf







HI-R-W26-W2

125Khz HID compatible RFID Reader
with wiegand 26 bit output Interface






Features  (Datasheet download here)





  • Frequency : 125Khz




  • support protocol : HID compatible protocol  




  • power : +9V to +12V DC




  • read card serial No only




  • wall mount version




  • embedded antenna




  • effective distance up to 3-5 cm




  • Less than 100ms decoding time




  • Low power dissipation with single power supply




  • Built-in LED and buzzer




  • output interface : wiegand 26 bit




  • (42x80x15) mm

Interface Description  

Wire color
Wiegand
Red
+9V To 12V DC
Black
Ground
Green
Data 0
White
Data 1
Drain
Shield Ground
Brown
Red LED (active low)
Orange
Green LED (active low)
Yellow
Buzzer (active low)
Blue
Hold
Violet
Card Present







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