EM-18 RFID READER

                              This module directly connects to any microcontroller UART or through a RS232 converter to PC.It gives UART/Wiegand26 output. This RFID Reader Module works with any 125 KHz RFID tags.

Specifications

•    5VDC through USB (External 5V supply will boost range of the module)
•    Current: <50mA
•    Operating Frequency: 125Khz
•    Read Distance: 10cm
•    Size of RFID reader module: 32mm(length) * 32mm(width) * 8mm(height)

RS232 interface format

10 ASCII DATA (card no.)+ 2 ASCII DATA (XOR result)

E.g. Card number is 4500C5D1E9B8 read from reader then the card number on card will be as below.

45 - Preamble

00C5D1E9 value in Hex = 12964329. / B8 is XOR value for (45 XOR 00 XOR C5 XOR D1 XOR E9)

Hence number on the card is 0012964329.

1. Data baud rate: 9600 bps
2. Data bit 8 bits
3. Parity check: None
4. Stop bit