Modul cititor de carduri RFID UART 7491E, 125KHz, compatibil EM4100 Arduino

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7941E Card reader module,integrated high performance card reading radion frequency circuit and antenna and user can select wiegand or UART interface.Rich Application support,it supports various cards card reading poeration.

Features:

voltage: DC 5V OR 12V

current: 40mA

supprot 125khz card reading

interface: Wiegand,UART

size:47x26x5mm

operating temperature:-20 to 70 celsius

EM4100 card reading distance:>8cm

Connection Introduction:

power:DC 5v power supply ,choose linearity power can gain better effects

D1 D0:wiegand data output DATA1,DATA0

for:format selection (hanging means w26,ground connection means w34)

Wirgand interface output introduction:

when it sensors the card,the serial number will be output via Data 0,Data 1 two data wire

Data 0 and Data 1 are high level when there is no data output

Data Bit 0:it will generate 400us low level on Data 0 wire

Data Bit 1:it will generate 400us low level on Data 1 wire

Every data length is 2400us

Every card has a serial number with 4 bytes,users should output the last three bytes

Add the first 12-bit even check bit in the front and add the last 12-bit odd check bit in the back ,26-bit data in total

card number is 6B 3D 12 D6

output data is 3D 12 D6

weigand 26 code

weigand 34 code

UART interface output

card type

0x02 EM4100
0x01 1k
0x03 4k
0x10 hid card
0x11 t5567
0x20 2nd card
0x21 ISO14443B
0x22 felica
0x30 15693 Label
0x50 cpu card
0x51 Sector information
0xFF keyboard data 

For example:

the data received by serial port tool is 02 0A 02 2E 00 B6 D7 B5 F2 03,then

the first byte 0x02 means data start

the second byte 0x0A means the whole data length is 10 bytes,which includes data start and data end

the third byte 0x02 means the card type is EM4100

the forth to eighth byte(0x2e 0x00 0xb6 0xd7 0xb5)means the read card number,and the fourth byte 0x2E is hidden card number

the ninth byte 0xf2 means Bcc check of second byte to eighth byte

the tenth byte 0x03 means data end

Notice:

keep away from interference source,and strong interference signal may affect card reading

select linearity power can improve the car reading distance and effect;switch power may attenuate the distance but will not influence normal operation

the module can operate normally in the range of 3v-5v,please do not use higher voltage

this module has high frequency signal ,so it may cause some interference to the analog circuit.

Users should place the module a little far away from the buzzer;if the distance is too close,the sound of the buzzer will be low 

Applications:

attendance fingerprint read write module

entrance guard intercom read write module

replicator

attendance fingerprint card reader module

entrance guard intercom card reader module

Informații despre transport:

Se expediază în toată țara prin curierat rapid fără limită de kilometri în sistem ramburs.

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