The current version of the NFC Type 2 Tag library supports only one Type 2 Tag command type: the READ command. When a READ command is received, the tag responds with the data that is stored for the tag.
The READ command has the following format:
Byte number | Description | Value |
---|---|---|
1 | Code | 0x30 |
2 | Number of the 4-byte data block to read from the tag data | 0x00 - 0xFF |
The library can send either a READ response (success) or a NACK response (failure):