NFC Read Tag

Kalipso - Form - Actions - Actions Description - Group RFID - NFC Read Tag

Uses the device NFC antenna for reading data from HF tags when in close proximity.

Action available for the following operating systems:

Parameters

• Tag Type numeric - The type of tags to read data. It can be one of:

  • 1 - Mifare Classic

  • 2 - Mifare Ultralight

  • 3 - ISO 15693

• Option numeric - Select what to read. It can be one of:

  • 1 - Read ID

  • 2 - Read Data

• Coded numeric - Converts non-printable chars into its ASCII code enclosed in ‘<’ and ‘>’. This is useful for debugging. It can be one of:

  • 1 - Yes

  • 2 - No

• Block Index numeric - Block index to read.

• Nbr of Bytes numeric - The number of bytes to read starting in the specified Block Index.

• Target string - The control or variable that will receive the tag ID or tag Data depending on the Option parameter.

For these last two parameters, it is important to consider that they are only available if Option is set to 2 - Read Data.

On iOS currently read/write is only supported for ISO 15693 (TagID can be read for other Tag Types)

Tag IDs are returned in MSB (Most Significant Byte), so if you need to use them in LSB you need to reverse the returned ID bytes.

On Android, specifying Tag Type = 0 allows to use the Read ID option for any tag type supported by Android.