125Khz RFID module - UART

SKU: 113990014
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RDM 125KHz card mini-module is designed for reading code from 125KHz card compatible read-only tags and read/write card . It can be applied in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc. 

This product will no longer available in future, you can purchase it's replacement module here.

  • 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
Including: External Antenna *1

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.


Please visit our wiki page for more info about this product. It will be appreciated if  you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.


Shenzhen 2U Designer: Others
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Weight: 10 g
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