Wiegand Protocol

cfernandez · Joined: 18 Oct 2003 Posts: 145

Hi,

Where I can found information for progamin a PIC whit Wiegand Protocol for make a Access Control reader.

Thank you very much!!!

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

Well, try Google.

chingB · Joined: 29 Dec 2003 Posts: 81

Hello,

I have implemented this weigand protocol using PIC18F452 for security and access conttrol. Unfortunately, I can't share the code since it is a copyright and proprietary to my company where I work.

I am willing to help on this...

cfernandez · Joined: 18 Oct 2003 Posts: 145

Dear ChingB,

Is possible to send me information for understand the protocol, and I write my code. I understand you copyright.

Thank you very much!!

Guest · Posted: Tue Sep 07, 2004 4:42 am

http://www.kerisys.com
http://www.ibtechnology.co.uk

adimot · Guest

Wiegand code is 26 bits long.
'Zeroes' are send on DATA0 line, while "Ones' are send on DATA1 line.
Bit's duration is 100 microseconds and there is a 1 milisecond pause between bits.
Pulses are active in '0' (to GND).
DATA0 and DATA1 are inactive at '1' (+5V).