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What is wiegand format?

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Kigongo
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Joined: 31/01/2011 - 13:02
What is wiegand format?

What is wiegand format?

GANEEV SINGH
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Hi Wiegand is a serial one

Hi 

Wiegand is a serial one-way data communication format whic is mainly used in ID card readers, like RFID etc. It makes use of 3 wires namely, DATA0, DATA1 and GND. It's data communication process works like this:

When a 0 is sent the DATA0 wire is pulled to a low voltage while the DATA1 wire stays at a high voltage. When a 1 is sent the DATA1 wire is pulled to a low voltage while DATA0 stays at a high voltage.