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Wiegand wrong output #18

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giutrec opened this issue Jan 24, 2022 · 3 comments
Closed

Wiegand wrong output #18

giutrec opened this issue Jan 24, 2022 · 3 comments

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@giutrec
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giutrec commented Jan 24, 2022

In Wiegand standard most significant bit and least significant bit are both parity check, this means that the ID of the card read with the Wiegand standard does not same ID that can normally be read, for example, with a smartphone or with an mfc522 spi or i2c module.

@giutrec giutrec changed the title Problema id codice su standard Wiegand Wiegand wrong output Jan 24, 2022
@giutrec
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giutrec commented Jan 24, 2022

The esp-rfid project use the Monkeyboard Wiegand Library i can found on his repository this issue #58 i think the solution could be the one proposed that in our case could work oerchè we have a W34 and not a W32 reader

@giutrec
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giutrec commented Jan 25, 2022

The esp-rfid project use the Monkeyboard Wiegand Library i can found on his repository this issue #58 i think the solution could be the one proposed that in our case could work oerchè we have a W34 and not a W32 reader

NOT WORK, WE SHOULD BUILD A WRAPPER TO CONVERT NFC 56bit uuid to 34bit Wigand standard

reference:
https://www.reddit.com/r/AskElectronics/comments/10llyy/rfid_how_do_i_convert_26_bit_wiegand_to_dec/
http://www.ictproduct.com/2014/05/23/5-2-2-wiegand-34%C2%ADbits-output-description/

@giutrec
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giutrec commented Jan 26, 2022

"Resolved" (temporary) PR #20

@giutrec giutrec closed this as completed Jan 26, 2022
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