Arduino 125K RFID Card Reader Module RDM6300 ID RF UART Output

Description

What it is

The RDM6300 module is an RFID reader designed for bidirectional communication with 125KHz identification tags and cards. It is compatible with Arduino and other microcontrollers, allowing integration into various security and monitoring systems.

Features

• 125KHz RFID Reader
• Compatibility with Arduino
• UART Communication

What it is for

RDM6300 modules are ideal for projects requiring RFID tag reading, such as controlled access systems or identification monitoring. It can be used with Arduino and other compatible microcontrollers.

Tutorial: How to Use Arduino 125K RFID Card Reader Module RDM6300

This RFID module reads and writes 125KHz RFID tags. Ideal for security and identification projects.

What you need

• Arduino UNO or compatible
• 5V cable
• 1kΩ resistor
• 125KHz RFID Tag

Steps

1. 1. Connect Arduino to 5V power supply.
2. 2. Connect RFID module to VCC and GND of Arduino.
3. 3. Connect a 1kΩ resistor between GND and D10 of Arduino.
4. 4. Load the Sketch code.
5. 5. Insert an RFID tag.
6. 6. Check the read.
7. 7. Try writing to the tag.
8. 8. Test the functionality.

Example code

```cpp
#include <SPI.h>
#include <MFRC522.h>

MFRC522 mfrc522(D10, D11);

void setup() {
  Serial.begin(9600);
  SPI.begin();
  mfrc522.PCD_Init();
}

void loop() {
  if (mfrc522.PICC_IsNewCardPresent()) {
    if (mfrc522.PICC_ReadCardSerial()) {
      Serial.println(mfrc522.uid.uidByte[0], HEX);
    }
  }
}
```

Mini project

Create an access system with an RFID tag.

Common mistakes

• Incorrect connection between Arduino and RFID module.
• RFID tag not compatible.
• Power supply error.
• Incorrect Sketch code.

Recommended accessories

• Arduino UNO
• 125KHz RFID tag
• 5V cable
• 1kΩ resistor

Frequently asked questions

What are the minimum requirements for using this module?
Arduino UNO or compatible, 5V power supply, 1kΩ resistor, 125KHz RFID tag.

Can I use this module with Arduino Nano?
Yes, but make sure the pinout is compatible.

Does the module read only 125KHz RFID tags?
Yes, it works only with 125KHz RFID tags.

What should I do if the module doesn’t read the tags?
Check the connection and the Sketch code. Verify the tag compatibility.