Key Features:

✔ 125kHz RFID Detection – Reads EM4100, TK4100, and FDX-B tags (keycards, animal chips). ✔ UART (TTL) Output – Directly interfaces with Arduino, Raspberry Pi, and ESP8266/ESP32. ✔ Short-Range Reading – 5–10cm (depends on antenna tuning). ✔ Compact & Easy to Use – Onboard antenna + LED/buzzer feedback (varies by model). ✔ Low Power – Operates at 5V DC (~50mA current draw).

Applications:

• Access Control – Door locks, garage openers.

• Time & Attendance – Employee/student check-in systems.

• Animal Identification – Scan pet microchips (FDX-B).

• Interactive Projects – RFID-triggered displays or alarms.

Wiring Guide (Arduino Example):

• VCC → 5V (or 3.3V for 3.3V logic modules).

• GND → Ground.

• TX → Arduino RX pin (e.g., D2 for SoftwareSerial).

• RX → Leave unconnected (or use for configuration).

Technical Specifications:

• Frequency: 125kHz.

• Supported Tags: EM4100, TK4100, FDX-B.

• Output Format: 5-byte HEX ID via UART (9600bps default).

• Antenna: Integrated PCB coil.

• Dimensions: 40mm × 30mm (varies by version).

Package Includes:

• 1x RDM6300 RFID Reader Module.

• 1x RFID Keychain Tag (EM4100).

• Optional: Header pins (select if needed).

Why Choose the RDM6300?

✅ Simple Integration – Works with Arduino’s SoftwareSerial. ✅ Cost-Effective – Cheaper than 13.56MHz NFC readers. ✅ Reliable – Proven performance in access control systems.