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125K Serial UART RFID Card Reader EM4100 ID Reader Module for Arduino
This is a radio frequency ID card reader module that can read the ID card's serial number. It can help to design the intelligent access control system. When the module gets the ID card£¬ it will directly send the card number of 4-byte hexadecimal number to the serial port. You can convert it into a decimal number that is the serial number engraved on the ID card. Features: - Support Card Type: Read-only ID cards (such as EM4100£¬ EM4001£¬ etc.) - Working voltage: 4.5-5.5VDC - Working current: 40mA (max) - Working frequency: 125KHz - Reading distance: 2-5cm - Logic Interface: UART TTL serial port - Communication format: 8N1 - Baud rate: 9600 (default)£¬ can be modified to be 19200 through jumper - Induction coil: pluggable - Coil size: 35X54mm - Coil lead length: 10cm - Great for DIY - Applications: Access control systems£¬ Attendance system