RDM6300 RFID Card Reader Module
RDM6300 overview
The RDM6300 is an RFID Card Reader Module. Main ratings: Receive Distance 20~50mm.; Working Temperature -10°C~+70°C.; Humidity 0~95%.; Loop Antenna 46x33x3mm.. This page brings together the RDM6300 pinout and key specifications, with the full datasheet PDF to preview below or download.
RDM6300 is a Non-contact RFID module, that uses the advanced RF receiving circuit and embedded MCU design, combing with high efficient decoding algorithm, to finish the data receive from EM4100 and all the compatible cards.
This is a very popular RFID card read module for Arduino users, it can read 125K EM4100 series RFID cards. This module is easy to use, serial port connects to Arduino MCU after power up, when the RFID car enters into card reading range, this module will send the card number to Arduino by UART

Key specifications
Datasheet
RDM6300 features
- Operating Frequency: 125 kHz.
- Baud Rate: 9600.
- Interface: TTL level RS232 format.
- Working Voltage: 5Vdc(+/-5%).
- Working Current: <50mA.
RDM6300 pinout
RDM6300 applications
- Access control systems for secure entry and exit management.
- Identification and authentication systems for personnel or asset tracking.
- Inventory management systems for tracking and monitoring items.
- Library or document management systems for efficient book or document tracking.
- Attendance systems for schools, offices, or events.
- Ticketing systems for transportation, events, or attractions.
- Animal identification and tracking systems for livestock or pet management.

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