One of the coolest part of IoT project must be the identification technology, 125Khz RFID module – UART is the most popular RFID module that produced by Seeed, By connecting this RFID module to Arduino or Raspberry Pi, you are able to build projects that can be used in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc.

Features

• Support external antenna

• Maximum effective distance up to 50mm

• 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:

Module will notify whenever 125khz tag approaches, tag serial number will be send via TX pin. Easy way for a RFID module on MCU projects or PC connnection via UartSB.