RDM630 125KHz cardreader 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.
FEATURES:
- Supports external antenna
- Maximum effective distance up to 150mm
- Less than 100ms decoding time
- Uart interface
- Supports EM4100 compatible read only or read/write tags
- Built-in external bi-color LED and buzzer driver
- Small outline design
Datasheet here
Note: Module will notify whenever 125khz tag approaches, tag serial number will be send via IO pin and save UART port for MCU.