RDM6300 RFID Card Reader Module – 125kHz UART Access Control Sensor for Arduino in Pakistan

Overview 

The RDM6300 is a dedicated 125kHz card-reading module designed to read ID TK4100 (or compatible) cards and key fobs. By handling all the complex RF decoding on board, it outputs a straightforward serial data stream whenever a tag is scanned. Complete with an external wire antenna coil for flexible placement, it is the go-to solution for DIY attendance trackers, smart door locks, and pet identification projects.

Key Features

• UART Serial Interface: Outputs card IDs directly via TTL serial communication, requiring only TX, RX, and power connections.

• External Coil Antenna: Comes with a matching wire loop antenna that provides reliable short-range tag detection.

• Low Power Consumption: Operates efficiently on 5V DC, making it suitable for portable or battery-backed security panels.

• Wide Compatibility: Easily interfaces with Arduino, ESP32, STM32, and PIC microcontrollers.

• Fast Response Time: Reads compatible 125kHz tags almost instantaneously upon contact or close proximity.

Technical Specifications