Using GS1 Data Matrix Codes

Warning

This library is deprecated, use EasyMatrixCode2 instead.

EasyMatrixCode is able to find and decode GS1-compliant data matrix codes.

The GS1 standard adds semantic identifiers to the contents of a data matrix code. These identifiers are interpreted in an easy and consistent way.

The structure of GS1-compliant content is as follows:

]d2[GS1]{Id1}{Value1}[GS1]{Id2}{Value2}…

where:

• ]d2 is the string identifying a GS1-compliant stream

• [GS1] is the GS1 escape character (0x1d)

• {Id} is an application identifier

• {Value} is the value associated with that identifier.

Example:

The string:

]d2[GS1]11180112[GS1]15190101

is interpreted as follows:

• It contains two GS1 parts: 11180112 and 15190101.

• The first (11180112) is composed of the identifier 11 and the value 180112, meaning that the product has a production date (the meaning of identifier 11) of January 12th, 2018.

• The second (15190101) is composed of the identifier 15 and the value 190101, meaning that the product has a best before date (the meaning of identifier 15) of January 1st, 2019.

See also

For more information, see https://www.gs1.org/