Image
EAN-130000000000000   EAN-13 barcode 0000000000000
UPC-A000000000000   UPC-A barcode 000000000000
UPC-E00000000   UPC-E barcode 00000000
Product NameThis Is Not A Valid Product
Created07-01-2006
Modified04-21-2013 3:48:06pm
MD54aad0d9ff11812ebdd5e376fdbef6222
SHA256af53aaf87656940fccd31afc9a799fb65b14ca21ceacfe3a4536951a8699b78a
Search Googleby EAN or by Title
Query Time0.0000789

A Data Matrix code is a two-dimensional barcode make up of blocks of black and white modules put together to make either a square or rectangular pattern. The information to be encoded can be text or raw data.

Normally, data size is from a few bytes up to 1,556 bytes. The length of the data depends on the symbol dimension used. To make sure the data can be read even when the pattern is slightly damaged, error correction codes are added which increase symbol strength. A Data Matrix symbol can store up to 2,335 alphanumeric characters. Here is a sample you can scan.

Barcode Data Matrix

Data Matrix symbols are rectangular in shape and usually square. As more data is added, modules are put together to allow for the data and error correction. Each module can be identified by the "L" shaped black line that runs down the left and across the bottom of each module. In the sample shown above, there are four modules. These "L" shaped sections are known as the "finder pattern". The top and right border of each module are made up of alternating light and dark blocks. Light blocks represent 0 (zero) and the dark blocks represent 1 (one). These are known as the "timing pattern". All of the blocks in the middle of each module make up the data and check codes. The entire pattern can range in size from 8x8 to 144x144 in size.

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