Seeedstudio UART 125KHz RFID Module

• Frequency: 125KHz
• Power supply: DC 5V (±5%)
• Maximum effective distance: up to 50mm
• Includes external antenna

The Seeedstudio 125KHz RFID Module – UART is designed for reading code from a 125KHz compatible card with read-only tags and read/write card. It can be applied in office security, home security, personal identification, access control, anti-forgery, interactive toy and production control systems, etc. This Seeedstudio 125KHz RFID Module – UART supports external antenna which is included.  The maximum effective distance is up to 150mm.

Features:

• Supports external antenna
• Maximum effective distance up to 150mm
• Less than 100ms decoding time
• UART TTL interface
• Support EM4100 compatible read only or read/write tags
• Built-in external bi-color LED and buzzer driver
• Small outline design

Note: The module will notify whenever 125khz tag approaches, tag serial number will be send via TX pin. This is an easy way for a RFID module on MCU projects or PC connection via UartSB.