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1.

 

Introduction 

This Grove-125KHz RFID Reader is a module used to read uem4100 RFID card information with 

two output formats: Uart and Wiegand. It has a sensitivity with maximum 7cm sensing distance. 

There is also 

the electronic brick version

 of this module. It can help you with project like internet of 

thing and access control system. 

 

 

 

And you should use these module below while using RFID reader: 

 

RFID tag combo (125khz)

 

 

Summary of Contents for 113020002

Page 1: ...1 Grove 125KHz RFID Reader Version 1 0 Release date 9 20 2015 Wiki http www seeedstudio com wiki Grove_ _125KHz_RFID_Reader Bazaar http www seeedstudio com depot Grove 125KHz RFID Reader p 1008 html ...

Page 2: ...2 Document Revision History Revision Date Author Description 1 0 Sep 21 2015 Victor He Create file ...

Page 3: ...3 Contents Document Revision History 2 1 Introduction 2 2 Specifications 3 3 Demonstration 4 3 1 Uart Mode Jumper set to the left two pins 4 3 2 Wiegand Mode Jumper Set to the Right two Pins 6 ...

Page 4: ...ision of Seeed Technology Inc this manual has been compiled and published which covered the latest product description and specification The content of this manual is subject to change without notice Copyright The design of this product including software and its accessories is under tutelage of laws Any action to violate relevant right of our product will be penalized through law Please conscious...

Page 5: ...wo output formats Uart and Wiegand It has a sensitivity with maximum 7cm sensing distance There is also the electronic brick version of this module It can help you with project like internet of thing and access control system And you should use these module below while using RFID reader RFID tag combo 125khz ...

Page 6: ...tage 4 75 5 25V Working Frequency 125 KHz Sensing Distance Max 70mm TTL Output 9600 baudrate 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 ...

Page 7: ...ting is 9600bps N 8 1 TTL output link between the computer and the SoftSerial Shield at 9600 bps 8 N 1 Computer is connected to Hardware UART SoftSerial Shield is connected to the Software UART D2 D3 include SoftwareSerial h SoftwareSerial SoftSerial 2 3 unsigned char buffer 64 buffer array for data receive over serial port int count 0 counter for buffer array void setup SoftSerial begin 9600 the ...

Page 8: ...ardware serial port clearBufferArray call clearBufferArray function to clear the stored data from the array count 0 set counter of while loop to zero if Serial available if data is available on hardware serial port data is coming from PC or notebook SoftSerial write Serial read write it to the SoftSerial shield void clearBufferArray function to clear buffer array for int i 0 i count i buffer i NUL...

Page 9: ...Mode output data is formatted with 26bits including 24bits card info and 2 bits parity bi t 0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 P E D P 0 E 0 D2 7 0 D1 7 0 D0 7 0 PE is even bit PO is odd bit E is the data bit which was involved in even O is the data bit which was involved in odd DX 7 0 is the data bit which correspond to Mifare Standard Light card r...

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