Now available from PMD Way is this classic RFID reader, as used in many Arduino projects. The RDM 125KHz card mini-module is designed for reading code from 125KHz card compatible read-only tags and read/write cards. It can be applied in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc. Don't forget to stock up on 125 kHz RFID tags! Features: Supports external antenna 5V operating voltage and I/O 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 includes external antenna Note: Module will notify whenever 125khz tag approaches, tag serial number will be sent via TX pin. Specifications: Frequency: 125kHZ Baud rate: 9600 Interface: TTL level RS232 format Working voltage: DC 5V(+/-5%) Working current:
