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RFID Credentials Specifications

RFID is at the heart of Billfold. This is the list of requirements when ordering wristbands. Contact us for preferred partner pricing.

Updated over 2 months ago

Requirements / Specifications

RFID Only

  • Chip type: Fudan 1K - 4 byte UID

  • Frequency range: high (HF) - 13.56MHZ

  • ISO standard: ISO 14443 A

Engraving/Printing Requirements

  • What: UID

  • Where: back of product

  • Font: Inconsolata ( or Microsoft YaHei ) large font

  • Number of digits: 8

  • Format: hex big-endian

The UID list will include by design UID in hex big-endian.

RFID with NFC

NFC capability allows for registration on smartphones.

  • Chip Type: NTAG 213

  • Frequency Range: HIGH (HF): 13.56MHZ

  • ISO Standard: ISO 14443 A

Engraving/Printing Requirements:

  • What: UID

  • Where: back of product

  • Font: Inconsolata ( or Microsoft YaHei ) large font

  • Number of digits: 14

  • Format: hex big-endian

Website Requirements for RFID with NFC

For a Specific Event (most common)

Link for the NFC chip to the wallet registration where xxxxx is the UID of the wristband without colons and the event Id is: ABC1234

SEE BILLFOLD CUSTOMER SUCCESS FOR EVENT ID.

For a General Link to Billfold Wallet (less common)

Link for the NFC chip to the wallet registration where xxxxx is the UID of the wristband without colons

Ex. If the UID is 77:A3:B6:1F, the URL will be http://billfold.app/wb/77A3B61F.

Things to Consider if You Are Ordering Your Own Wristbands

  • Is the manufacturer attenuating the RFID chips? Attenuating them ensures that the antenna is large enough to provide a quick and precise scan response from the readers. Most manufacturers don’t do this, leading to higher failure rates.

  • In which endian format is the UID printed? Big-endian and little-endian are the two different ways UIDs are printed. For flawless registration, ensure your UID format matches how your scanners read it.

  • Accurate engraving of specific characters in a UID is crucial for clarity. Just like the printing format of a UID, ensuring legibility in its engraving is essential for a seamless registration process. Instances have shown that festivals have abandoned registration altogether due to unreadable UIDs, rendering the cashless software ineffective.

  • Does the manufacturer/supplier offer any quality assurance protocols? And how do they ensure that the order is produced to the specified standards, including any redundancy measures?

    • What if the artwork deviates significantly from the originally submitted concept?

    • What if there are duplicate UIDs?

    • What if the UID specifications are incorrect?

    • What if the wrong product is produced?

    • Will they provide photos or verification that the product is being printed correctly?

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