UART RFID Reader Module 125kHz RDM6300 w/ Anthenna

  • Was  RM34.00 
  • RM18.00

  • Product Code: RFID module RDM6300
  • Availability: In Stock

RDM6300 125KHz card reader module is designed for reading code from 125KHz card compatible read-only tags and read/write card . It can be applied in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc.

* RDM6300 is the update version of RDM630, it has higher sensitivity and longer read range. The pins and output data is 100% compatible with old RDM630 module.


  • Support external antenna
  • Maximum effective distance up to 50mm
  • Less than 100ms decoding time
  • UART interface
  • Support EM4100 compatible read-only or read/write tags
  • Small compact design


Package Included

  • 1 x RDM6300 RFID module
  • 1 x External antenna with connector

Connect RDM6300 to Arduino   (h-language)


#include <SoftwareSerial.h>
SoftwareSerial RFID(2 , 3); // RX=2 and TX=3

int i;

void setup()
  RFID.begin(9600);    // start serial to RFID reader
  Serial.begin(9600);  // start serial to PC 

void loop()
  if (RFID.available() > 0) 
     i =;
     Serial.print(i, DEC);
     Serial.print(" - ");


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Tags: RFID Reader