RDM6300 125kHz RFID Reader Module with Antenna Coil

RDM6300 125kHz RFID Reader Module with External Antenna Coil

The RDM6300 is a compact 125kHz RFID reader module designed for reading EM4100-compatible RFID cards and tags. It comes with an external loop antenna coil and outputs the tag ID via a standard UART serial interface, making it straightforward to integrate with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontrollers.

Ideal for access control, attendance systems, and RFID-based identification projects, the RDM6300 is a reliable and low-cost solution for 125kHz RFID reading applications.

Key Specifications

• Model: RDM6300
• Operating Frequency: 125kHz (LF)
• Compatible Tags: EM4100, EM4102, and compatible 125kHz cards/tags
• Output Interface: UART (TTL serial, 9600 baud rate)
• Supply Voltage: 5V DC
• Current Consumption: Approx. 50mA
• Reading Distance: Up to 5cm (depending on tag and antenna)
• Output Data Format: 9600 bps, 8N1
• Antenna: External loop coil antenna (included)
• Module Size: 38.5mm x 19mm

Key Features

• 125kHz LF RFID reader with UART serial output
• External loop antenna coil for flexible placement
• Simple wiring: VCC, GND, TX, RX
• Compatible with EM4100/EM4102 cards, key fobs, and tags
• Easy integration with Arduino via SoftwareSerial or hardware UART
• RoHS compliant
• Compact PCB for embedded installations

Wiring (Arduino UNO)

• VCC → 5V
• GND → GND
• TX → Arduino RX (D0 or SoftwareSerial pin)
• ANT1 / ANT2 → External antenna coil terminals

Applications

• Door access control systems
• Employee and student attendance systems
• RFID-based locker and cabinet locks
• Arduino RFID projects and prototyping
• Asset tracking and identification
• Library management systems

Package Contents

• 1x RDM6300 125kHz RFID Reader Module
• 1x External loop antenna coil

Shipping & Delivery

Fast nationwide delivery across Pakistan. Orders are processed within 24 hours and delivered within 2–4 working days. All items are securely packed for safe arrival.

For more details, see our Shipping Policy and Return & Refund Policy.