A two-dimensional (2D) barcode is a set of small geometric shapes that stores more information than a linear barcode.
Using compatible scanners, 2D barcodes make data encoding faster and more accurate than the conventional method. Nordic Semiconductor applies the data matrix format on all 2D barcodes for all types of labels. Stored information varies depending on the label type.
The 2D barcode makes use of the data identifier (DI) for easier parsing of stored information. The DI precedes the value it represents. The pipe (|) character is used as an added delimeter to parse data. The basic format is (DI)<stored data>|.
The basic format repeats for all stored information. For trace code quantity which appears on the inner box label, the stored information is displayed between 2 DI's to distinguish the beginning and end of the series of information.
All human-readable information, except logos and symbols, are included on the 2D barcode. Nordic Semiconductor internal information is also included.