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SeeedStudio Grove-125KHz RFID Reader, Manual, Page: 6 / 6

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SeeedStudio Grove-125KHz RFID Reader Manual Download Page 6

 

Card Number ID: 0009776930 ------- Decimalism [Start Bit(00) + Card 
Number(8 numbers)] 

 

Output: 0700952F229F ------------- Hex [[Start Bit(07h) + Card Number(8 
numbers) + Checksum] 

 

The calculator for decimal and hex numbers is available online. 

Q2: How to read tags continuously?

 

A2: The RFID reader can read tags continuously without any setting. Keep the tag 2.5-4 
cm from the antenna, and the reader can read data continuously. And if the distance is 
below 2.5cm, the reader reads data once if not moving tags away. 

Resources 

 

[Demo]

 

Grove - 125KHz RFID Reader Demo

 

 

[PDF]

 

Declaration of conformity

 

 

[PDF]

 

Test Report

 

 

Summary of Contents for Grove-125KHz RFID Reader

Page 1: ...rnet of thing and access control system Version Product Version Changes Released Date Grove 125KHz RFID Reader V1 0 Initial Oct 2015 Specifications Parameter Value Range Voltage 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 Tip...

Page 2: ...or all possible MCU platforms Hence users have to write their own software library Getting Started Note If this is the first time you work with Arduino we firmly recommend you to see Getting Started with Arduino before the start Play With Arduino Hardware Step 1 Prepare the below stuffs Seeeduino V4 2 Base Shield Grove 125KHz RFID Reader Get One Now Get One Now Get One Now Step 2 Connect Grove 125...

Page 3: ...nger to Seeeduino as below Seeeduino Grove 125KHz RFID Reader 5V Red GND Black D3 White D2 Yellow Software Step 1 Copy the code into Arduino IDE and upload If you do not know how to upload the code please check how to upload code link between the computer and the SoftSerial Shield at 9600 bps 8 N 1 Computer is connected to Hardware UART ...

Page 4: ...a into char array buffer count SoftSerial read writing data into array if count 64 break Serial write buffer count if no data transmission ends write buffer to hardware 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 o...

Page 5: ...ed with 26bits including 24bits card info and 2 bits parity bit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 PE D E 0 D2 7 0 D1 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 read only ID FAQs Q1 How to convert the output to Card Number A1 Please follow below ste...

Page 6: ...bers is available online Q2 How to read tags continuously A2 The RFID reader can read tags continuously without any setting Keep the tag 2 5 4 cm from the antenna and the reader can read data continuously And if the distance is below 2 5cm the reader reads data once if not moving tags away Resources Demo Grove 125KHz RFID Reader Demo PDF Declaration of conformity PDF Test Report ...

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