RDM6300

 

Overview

RDM6300.jpg

RDM6300 125KHz cardreader mini-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.

Go shopping RDM6300 (IM120606001)

Features

bulletSupport external antenna
bulletMaximum effective distance up to 50mm
bulletLess than 100ms decoding time
bulletUart interface
bulletSupport EM4100 compatible read only or read/write tags
bulletSmall outline design

Hardware

RDM6300.jpg

We offer customization of this module. We can provide the redesign of this order to meet your requirement， including size, pin positions and output data format.

 

RX receive

TX transmit


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#include <SoftwareSerial.h>
SoftwareSerial RFID(2, 3); // RX and TX
 
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 = RFID.read();
     Serial.print(i, DEC);
     Serial.print(" ");
  }
}

 

 

------------------------------------------------

#include <SoftwareSerial.h>
SoftwareSerial RFID(2, 3); // RX and TX
 
int data1 = 0;
int ok = -1;
int yes = 13;
int no = 12;
 
// use first sketch in http://wp.me/p3LK05-3Gk to get your tag numbers
int tag1[14] = {2,52,48,48,48,56,54,66,49,52,70,51,56,3};
int tag2[14] = {2,52,48,48,48,56,54,67,54,54,66,54,66,3};
int newtag[14] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0}; // used for read comparisons
 
void setup()
{
  RFID.begin(9600);    // start serial to RFID reader
  Serial.begin(9600);  // start serial to PC
  pinMode(yes, OUTPUT); // for status LEDs
  pinMode(no, OUTPUT);
}
 
boolean comparetag(int aa[14], int bb[14])
{
  boolean ff = false;
  int fg = 0;
  for (int cc = 0 ; cc < 14 ; cc++)
  {
    if (aa[cc] == bb[cc])
    {
      fg++;
    }
  }
  if (fg == 14)
  {
    ff = true;
  }
  return ff;
}
 
void checkmytags() // compares each tag against the tag just read
{
  ok = 0; // this variable helps decision-making,
  // if it is 1 we have a match, zero is a read but no match,
  // -1 is no read attempt made
  if (comparetag(newtag, tag1) == true)
  {
    ok++;
  }
  if (comparetag(newtag, tag2) == true)
  {
    ok++;
  }
}
 
void readTags()
{
  ok = -1;
 
  if (RFID.available() > 0)
  {
    // read tag numbers
    delay(100); // needed to allow time for the data to come in from the serial buffer.
 
    for (int z = 0 ; z < 14 ; z++) // read the rest of the tag
    {
      data1 = RFID.read();
      newtag[z] = data1;
    }
    RFID.flush(); // stops multiple reads
 
    // do the tags match up?
    checkmytags();
  }
 
  // now do something based on tag type
  if (ok > 0) // if we had a match
  {
    Serial.println("Accepted");
    digitalWrite(yes, HIGH);
    delay(1000);
    digitalWrite(yes, LOW);
 
    ok = -1;
  }
  else if (ok == 0) // if we didn't have a match
  {
    Serial.println("Rejected");
    digitalWrite(no, HIGH);
    delay(1000);
    digitalWrite(no, LOW);
 
    ok = -1;
  }
}
 
void loop()
{
  readTags();
}

 

 

 

 

 

 

Useful Links

by Zach <RDM6300 RFID with PIC18 Dev Board>