Here at Flomio we receive a lot of questions about how NFC tags work. What’s the difference between 14443A and 14443B? What’s a Type 2 tag? What about Felica? The NFC space can be a confusing space with multiple standards and tag types to worry about.
This post assumes basic familiarity with Java and the Android SDK. It gives you a brief intro on how to talk to the NFC API to read a tag and subscribe to an event that detects it. Read more →
NDEF was authored by our good friend Miller Abel (he’s a stud). The specification details how to organize data to that NFC Forum complaint readers will properly respond to tags they read. We thought to include some slides from the NFC Bootcamp for reference.
OverviewNFC 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.
