RFID Card Reader Module RDM6300
The RFID Card Reader Module RDM6300 is a compact, high-performance 125 kHz RFID reader designed for secure identification and access control.
It communicates via UART (TTL level), making it effortless to connect with Arduino, Raspberry Pi, ESP32, and other microcontrollers for IoT authentication, time-attendance systems, and smart home automation.
This module reads EM4100/EM4102 and compatible passive RFID tags with high accuracy and low power consumption, enabling a wide variety of DIY and commercial applications.
🔹 Key Features
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125 kHz RFID Reader: Supports EM4100/EM4102 tags and cards.
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UART TTL Output: Simple serial communication for microcontrollers.
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High Sensitivity & Fast Response: Reliable tag detection up to 5 cm.
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Low Power Operation: Suitable for portable and battery-powered projects.
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Compact PCB Design: Easy integration into enclosures and kiosks.
🔹 Technical Specifications
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Operating Frequency: 125 kHz
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Supported Cards/Tags: EM4100, EM4102, compatible 64-bit read-only tags
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Operating Voltage: 3.3 V – 5 V DC
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Current Consumption: <50 mA (typical)
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Interface: UART (TTL level, default 9600 bps)
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Reading Distance: Up to ~5 cm (depends on tag and environment)
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Antenna: External PCB coil (included)
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Dimensions: Approx. 38 mm × 40 mm × 7 mm
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Operating Temperature: –20 °C to +80 °C
🔹 Applications & Use Cases
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Access Control: Smart door locks, security gates, and RFID-enabled lockers.
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Time & Attendance: Office or school entry logging.
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Payment Terminals & Vending Machines: RFID card authentication.
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IoT Automation: Integrate user identification into home or industrial systems.
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Robotics & DIY Projects: Enable object or user tracking.
🔹 Advantages for Makers & Engineers
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Works seamlessly with Arduino and Accessories and Electronics Components.
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Simple UART interface eliminates the need for complex wiring or extra libraries.
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Stable and consistent performance in a compact form factor.
🔹 Safety & Precautions
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Use only passive 125 kHz tags for compatibility.
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Keep the reader away from strong electromagnetic fields to prevent interference.
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Mount antenna securely for optimal read distance.
🔗 Helpful Internal Links
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Explore more Electronics Components for complete RFID systems.
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Pair with Arduino and Accessories for quick prototyping.
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Check Tools and Accessories for installation needs.
🎥 Video Tutorial
📝 Product Summary
The RDM6300 RFID Card Reader Module provides secure, reliable 125 kHz card reading with UART TTL output, making it perfect for Arduino, Raspberry Pi, IoT authentication, and access control applications.
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