5V Embedded RFID Card Reader Module 125Khz 13.56Mhz Double Frequency Wiegand Uart

Dual IC + ID card reader module, which integrates a high-performance reader antenna and RF circuit, or alternatively Uart wiegand data output protocol.

Voltage DC 5V
Current 40mA
125kHZ supports reading and 13.56MHZ cards
Interface wiegand, UART
Small size 47mm (length) * 26mm (width) * 5mm (thickness) (including the antenna) conveniently embedded
Industrial products -35 degrees to 85 degrees in the environment can work
 

use:
Attendance fingerprint reader module
Door-speaking reader module
Interface Description:
5v D1 D0 / TXD GND CST

DC 5V power supply, select the linear power reader can get better results

D1 WG outputs DATA1, DATA0

D0 / TXD WG output module Uart DATA0 or the pin is the serial data output terminal

CST W26 / 34 format selection (vacant represented W26, W34 represents the ground) but also other functions

Wiegand interface output Description:

When the card is sensed, the card serial number and outputs Data1 Data0 by two data lines.
Data0 Data1 with the data output in the absence of a case, are high.
Generating a data bit 0 400us in width Data0 line low.
1 generates a data bit width in a low 400us line Data1.
The length of each bit of data is 2400us
Each string has a card 4-byte sequence number, which we output the next three bytes.
Before preceded parity bit 12, back 12 after adding an odd parity bit of 26-bit data.
Card number: 6B 3D 12 D6
Output data: 3D 12 D6

Weigand 26 coding:  

Weigand 34 coding:  

Uart Output Interface Description:

Wherein the card types are:

0x02 EM4100

0x01 MF 1K

For example: the serial data received as the tool 02 09 02 04 2E 53 82 F0 03 then the

The first byte of data represents the start 0x02.

The second byte of data represents an integer of 0x09 9 bytes in length, including start and end of the data Data.

The third byte indicates the card type is 0x02 EM4100.

The fourth byte to seventh byte (0x04 0x2E 0x53 0x82) four bytes to read the card.

0xF0 8th byte indicates the second byte to the eighth byte BCC check.

9 showing the end of the data byte 0x03.