RDM6300 125KHz RFID Reader Module
The RDM6300 125KHz RFID Reader Module is a reliable RFID reader designed for reading 125KHz EM4100-compatible RFID cards and key tags. It communicates through a simple UART (TTL Serial) interface, making it easy to integrate with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, AVR, and other microcontrollers.
The module is widely used in attendance systems, access control, smart door locks, inventory management, security systems, automation projects, and student learning. Its plug-and-play serial communication allows beginners and professionals to quickly build RFID-based applications.
Ideal for Bangladeshi students, engineers, makers, robotics enthusiasts, and IoT developers, the RDM6300 offers stable performance, low power consumption, and excellent compatibility.
The RDM6300 RFID Reader Module is one of the most popular low-frequency RFID readers for embedded electronics projects. Operating at 125KHz, it supports EM4100 and compatible passive RFID cards and transmits the card ID through a standard TTL UART interface.
Unlike complex RFID modules, the RDM6300 requires minimal programming and wiring. Simply connect the TX pin to your microcontroller's RX pin and receive the unique card number whenever a compatible RFID tag is presented.
Whether you're building an RFID attendance machine, smart door lock, office access control, student ID verification system, IoT security device, or Arduino learning project, this module provides a dependable and affordable solution.
Because of its simple serial protocol, the RDM6300 is perfect for educational institutions, universities, makerspaces, robotics competitions, and industrial prototypes.
Features:
- Reads 125KHz RFID cards and key fobs
- Supports EM4100 compatible RFID tags
- TTL UART Serial communication
- Fast and stable card reading
- Low power consumption
- Easy Arduino integration
- Compatible with ESP32 and ESP8266
- Works with Raspberry Pi via UART
- Compact PCB design
- Reliable industrial performance
- Excellent for DIY and IoT projects
- Beginner-friendly wiring
- Long operational lifespan
- Stable signal reception
Specifications:
| Specification | Details |
|---|---|
| Product Name | RDM6300 RFID Reader Module |
| Operating Frequency | 125KHz |
| RFID Type | EM4100 Compatible |
| Communication | UART TTL Serial |
| Baud Rate | 9600bps |
| Operating Voltage | 5V DC |
| Current Consumption | Approx. 50mA |
| Reading Distance | 20–50mm (depends on tag) |
| Output Format | Card ID via Serial |
| Interface | TX, RX, VCC, GND |
| Operating Temperature | -20°C to +80°C |
| Dimensions | Approx. 38 × 19mm |
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