It is a DC3.5V~5V RFID read module.It can serve as serial port and Wiegand output at the same time.It swipes the card once and outputs the card number once.
1>.Ultra-small size,easily embedded in the system.
2>.Ultra-long distance card reading,up to 7cm.
3>.Low power consumption
4>.Wide voltage 3.5V~5V power supply
5>.It has good performance and high stability.
1>.Product Name:DC3.5V~5V RFID Read Module
4>.Output Interface:TTL level/Wiegand 26 output
5>.Working Voltage:DC 3.3V~5V
7>.Card Reading Distance:70mm
9>.Card Reader Type:ID card (this product does not carry ID card)
1>.Frame Format:1 start bit,1 stop bit,8 data bits,no parity
2>.Output Format:Hexadecimal ID code (4 bytes)+check code (1 byte)
3>.Application Example:The number on the ID card is 0009321926 142,15814
The output is:00 8E 3D C6 75,(75=00 8E 3D C6)
5.Wiegand 26 Protocol:
1>.Three wires(one ground wire)
2>.DADAO:Data 0 output
3>.DADA1:Data 1 output
4>.Wiegand protocol stipulates that when there is no data output,the data line is high level,when using 5V power supply,4V above is high level,below 1V is low level.It is recommended to connect the data lines to the interrupt pins of the microcontroller,or through a diode and connected to one interrupt pin.
5>.Timing:The Wiegand protocol stipulates that when outputting data 0 or 1,low pulses are output on the DADA0 or DADA1 pins respectively.The pulse time is 20us-200us (100us for this module) for one bit,and the time interval between each pulse is 200us-- Between 20ms (1600us for this module).The time interval of each data output should be greater than 250ms.
1>.Bit 1:Even parity bit of 2-13 bits of transmitted data
2>.Digits 2-9:Digits 23-16 of the card number
3>.Digits 10-25:15-0 of the card number
4>.Bit 26:odd parity bit of 14-25 bits of transmitted data
1pcs DC3.5V~5V RFID Read Module
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