Overview

• Intro
• NFC Tag Types
• NDEF Messages
• NDEF Records
  • Type Name Format (TNF)
  • Record Type Definition (RTD)

Intro

NFC Data Exchange Format, or NDEF, is the most widely supported format for writing and reading NFC tag data. It’s a lightweight, binary message format used to encapsulate arbitrary data like URL’s or MIME-TYPE. The format is composed of NDEF Messages which contain an array of NDEF Records each encapsulating a certain type of data.

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