125khz RFID UART vs Weigand?

End-Of-Life Products & Services Tech support before 2012
1

hello,

I was just curious about the difference between the two models? from what I gathered the UART uses the TX pin whereas the Weigand doesn’t therefore leaving TX/RX for other uses?

The instructable I found uses the UART so would the Weigand be compatible with this after a few wire changes?

UART:
http://www.seeedstudio.com/depot/125khz-rfid-module-uart-p-171.html

Weigand:
http://www.seeedstudio.com/depot/125khz-rfid-module-wiegand-p-225.html

instructable:
http://www.instructables.com/id/Arduino-and-RFID-from-seeedstudio/

thanks :slight_smile:

2

Hi Whiskey,

The two module use different protocol to transmit the read card info. You can get more details in the datasheet of the module.

Generally speaking, the Uart module is much easier to use, as it only use 3 pins(TX, GND, VCC). And you can read them by an MCU or connect to your Computer(through RS232 or UartSB http://www.seeedstudio.com/depot/uartsb-v22-a-much-more-powerful-usb-to-serial-converter-p-495.html?cPath=104_109)

May this helpful to you, and please feel free to ask any question.

Regards,

-Icing