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.
- 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.