RDM6300 RFID Module - 125 kHz receiver, UART, 5 V
This goes with it
Description
Product Overview
- RFID receiver module for 125 kHz transponders
- UART interface for direct microcontroller connection
- Reading range of approximately 4 to 12 cm
- Operating voltage 5 V
- Output of the detected tag as an ASCII string
- Integrated antenna in the module
Product Description
The module receives data from passive 125 kHz RFID transponders and outputs the detected tag ID via a UART interface. Communication is serial, allowing the module to be connected directly to microcontroller boards without requiring additional decoders. The reading range is approximately 4 to 12 cm, depending on the transponder and surroundings.
The module operates with a 5 V power supply and outputs detected tags as ASCII strings that can be processed by the microcontroller. Since no external antenna is required, installation effort is reduced to a minimum. The repetition rate enables several tags to be read quickly in succession.
Typical applications include access control systems, in which RFID cards or key fobs are detected from a short distance, as well as inventory systems and attendance tracking. The module can also be used as a component in robotics projects to guide autonomous vehicles to station identifiers. In home automation, it serves as a card-based door opener.
In addition to the 5 V power supply, the connection requires at least two data lines to the controller's UART interface. Boards with 3.3 V logic require a level shifter for the data input to prevent damage. An external power supply is required; USB ports on development boards usually provide too little power for reliable operation.
Safety Notice
The module is not suitable for connection to a building's electrical installation or mains voltage. It is intended exclusively for building prototypes and for testing and development purposes. Work on or in the immediate vicinity of the power supply must be carried out by qualified electricians; if in doubt, consult a qualified electrician before operation.
Scope of Delivery
- 1* 125K RFID Receiver Module - RDM6300, UART Output