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.
