125KHz RFID Card Reader Module UART Interface | Fast ID Read
125KHz RFID Card Reader Module UART Interface | Fast ID Read
125KHz RFID ID Card Reader Module with UART Interface
The 125KHz RFID ID Card Reader Module is a compact, reliable embedded reader designed for seamless integration into access control systems, automation projects, and DIY electronics builds. With a fast card-read response and standard UART communication, this module is an ideal solution for makers, engineers, and hobbyists looking to add RFID capability to their setup.
Key Features
- High-Speed Card Reading: Reads 125KHz RFID cards in under 100ms, enabling swift and smooth identification.
- UART Interface: Standard serial communication makes integration straightforward with microcontrollers like Arduino, Raspberry Pi, and other development boards.
- 5V Operating Voltage: Runs efficiently at 5V, ensuring broad compatibility with common power supplies and development platforms.
- Compact PCB Design: Lightweight and space-saving, easy to embed into custom enclosures or project builds.
- Wide Compatibility: Works with standard 125KHz EM4100 or compatible ID cards and key fobs.
- Stable Performance: Reliable read range and consistent output make it suitable for both prototyping and finished product integration.
Specifications
- Frequency: 125KHz
- Interface: UART (Serial)
- Operating Voltage: 5V DC
- Card Read Speed: <100ms
- PCB Construction
- Compatible Cards: 125KHz EM4100 / EM4200 and compatible formats
Perfect For
- DIY access control systems
- Smart home automation projects
- Attendance tracking systems
- Arduino & Raspberry Pi RFID projects
- Embedded electronics prototyping
For more information on electronic component safety and best practices, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What frequency does this RFID card reader module operate at?
A: This RFID reader module operates at 125KHz, making it compatible with a wide range of standard EM4100, EM4200, and similarly formatted 125KHz ID cards and key fobs commonly used in access control applications.
Q: What interface does the 125KHz RFID module use and how do I connect it?
A: The module uses a standard UART (serial) interface, which makes it easy to connect to popular microcontrollers such as Arduino, Raspberry Pi, ESP32, and other development boards. Simply wire the TX/RX pins to your microcontroller's corresponding serial pins and power it with 5V DC.
Q: How fast does this RFID module read a card?
A: The 125KHz RFID card reader module is capable of reading a card in under 100 milliseconds, providing a fast and responsive experience for access control and identification applications.
Q: What is the operating voltage for this RFID reader module?
A: The module operates at 5V DC, ensuring wide compatibility with standard power sources and development board power rails, making it convenient for both prototyping and embedded system builds.