flipperzero-firmware/documentation/file_formats/iButtonFileFormat.md

iButton key file format

Example

Filetype: Flipper iButton key
Version: 1
# Key type can be Cyfral, Dallas or Metakom
Key type: Dallas
# Data size for Cyfral is 2, for Metakom is 4, for Dallas is 8
Data: 12 34 56 78 9A BC DE F0

Description

Filename extension: .ibtn

The file stores single iButton key of type defined by Key type parameter

Version history

1. Initial version.

Format fields

Name	Description
Key type	Currently supported: Cyfral, Dallas, Metakom
Data	Key data (HEX values)