Incorrect UID read with Wiegand 32 bit device - anyone know protocol

[steve gale]

We currently use a 522 reader and have been donated several Wiegand devices.

These output 32 bits when a card is read.

The displayed UID is totally different to the UID stored on the card.

I have investigated the code and have a fix but this is to the Wiegand.cpp library file not the esp-rfid code.

If we had not already been using a 522 reader this issue would never have arisen.

So my question is, does anyone have a reference to the Wiegand 32 bit protocol? I can't find one.

I am going to post a similar question in the github repository for the code.

[Enrico Vazzoler]

Try to check if D0 and D1 are inverted.

[steve gale]

They are okay, I originally had them inverted on my logic analyser. When I work through manually the errors occur when the last bit is read in.

…

Sent from my iPhone

On 18 Nov 2022, at 10:28, Enrico Vazzoler ***@***.***> wrote:  Try to check if D0 and D1 are inverted. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.

[Matteo Giaccone]

hey @windy54 do you confirm this is something to do with the Wiegand library? Am I right?

I'm going to close this for now, but if you still need help on this one let me know. Maybe can you provide a couple of examples of RFID reads from the two sensors for the same card?

[steve gale]

Hi,Yes I have edited the wiegand.cpp file, I will send the edits to you.CheersSteve GaleOn 23 Jan 2023, at 20:39, Matteo Giaccone ***@***.***> wrote: hey @windy54 do you confirm this is something to do with the Wiegand library? Am I right? I'm going to close this for now, but if you still need help on this one let me know. Maybe can you provide a couple of examples of RFID reads from the two sensors for the same card? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>