ماژول کارت خوان RFID Reader RDM6300 با فرکانس ۱۲۵ کیلوهرتز

RDM6300 125Khz RFID reader module
The RDM6300 RFID reader module is a device used to read radio frequency identification (RFID) cards or tags operating at a frequency of 125 kHz.
RFID systems enable contactless identification via radio waves and are used in a variety of applications for access control, automation, inventory tracking, and other applications that require identification or authentication of objects or people.
RDM6300 RFID reader module supports standard 125kHz RFID cards , uses standard communication interface such as UART (Universal Asynchronous Receiver-Transmitter) to transmit data to the microcontroller or host device.
SPECIFICATIONS
Frequency: 125 kHz
Supply voltage: 5V (±5%)
Current: 50mA
Reception range: 20 to 50 mm (depending on the card, antenna and environment)
Dimensions
PCB: 38.38 mm x 18.10 mm
Antenna: 35.2 mm x 46 mm

Basic test circuit of the RDM6300
This code reads data arriving from the RDM6300 module via serial communication and displays it on the Arduino serial monitor.

Code

#include <SoftwareSerial.h>

// Define the pins for software serial communication
#define RX_PIN 4 // RX from RDM6300 connected to pin 4 of Arduino
#define TX_PIN 3 // TX of the RDM6300 connected to pin 3 of Arduino

SoftwareSerial rfidSerial(RX_PIN, TX_PIN); // RX, TX

void setup() {
  // Start serial communication with the serial monitor
  Serial.begin(9600);
  
  // Start serial communication with the RDM6300 module
  rfidSerial.begin(9600);
  
  Serial.println("Starting RDM6300 RFID reader...");
}

void loop() {
  // Check if there is data available on the RDM6300 serial port
  if (rfidSerial.available() >= 14) { // The RDM6300 sends 14 bytes for each tag read
    // Read the tag data
    byte tagData[14];
    for (int i = 0; i < 14; i++) {
      tagData[i] = rfidSerial.read();
    }
    
    // Display the tag ID on the serial monitor
    Serial.print("Tag ID: ");
    for (int i = 5; i < 11; i++) { // Bytes 5 to 10 contain the tag ID
      Serial.print(tagData[i], HEX);
    }
    Serial.println();
  }
}