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RFID 125Khz 13.56mhz IC Dual frequency card reader module

US $11.00
SKU:
1ZUH-YV8X-9IYK
Weight:
0.01 KGS
* Interface:
* Voltage:
Quantity:

Product Description

1zuh-yv8x-9iyk.jpg

7941D card reader module, integrated high-performance card reader RF circuit and antenna, while supporting ID and 1C card, select wg26, Uart interface

Voltage DC12V

Current 40mA

Supports 125KHz (EM card) and 13,56MHz (ISO l4443A) cards

Volume 47mm* 26mm* 5mm (including antenna)

Working environment: -20 ° c-70 ° c

EM4100 reader distance> 8cm

IC card reader distance> 5cm

interface:

VCC Power supply

D1 wg data1

D0 wgdata2

GND

FOR wire GND indicates wg34

wg26 code

0

00111101

00010010

11010110

1

Parity check

3D

12

D6

Odd check

wg34

0

01101011

00111101

00010010

11010110

0

Parity check

6B

3D

12

D6

Odd check

 

 

UART interface

 

Data head

length

Card type

card number

BCC calibration

The number of ends

0x02

0x09

0x01

SN0-SN3

(XOR of all data
Exclude header data and Tail data
)

0x03

Card types are:
0x02 EM4100

0x01 MF1K

0x03 MF 4K

For example: The data received by the serial port tool is 02 0A 02 2E 00 B6 D7 B5 F2 03
The first byte 0x02 indicates that the data starts.
The second byte, 0x0A, indicates that the entire data length is 10 bytes, including data start and end of data.
The third byte 0x02 indicates that the card type is EM4100.
The fourth byte to the 8th byte 0x2E 0x00 0xB6 0xD7 0xB5 The five bytes represent the read number, where the fourth byte 0x2E is the hidden card number.
The 9th byte 0xF2 represents the BCC check for the second byte to the eighth byte.
The tenth byte 0x03 indicates that the data ends.
Precautions
1, please stay away from the interference source, strong interference signal may affect the reader.
2, the choice of linear power supply can significantly improve the reading distance and the effect of switching power supply on the reading distance has a certain attenuation. but
Does not affect the normal and stable work
3, the module 9 ~ 12V range can work properly, remember that you can not use a higher voltage
4, the block itself will occur high-frequency signal, the analog circuit may have some interference
 

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