Data Matrix / 2D Barcode Research
A Data Matrix code is a two-dimensional matrix barcode consisting of black and white “cells” or modules arranged in either a square or rectangular pattern. The information to be encoded can be text or numeric data. Usual data size is from a few bytes up to 1556 bytes. The length of the encoded data depends on the number of cells in the matrix. A Data Matrix symbol can store up to 2,335 alphanumeric characters.
Data Matrix codes are becoming common on printed media such as labels and letters. The code can be read quickly by a barcode reader which allows the media to be tracked, for example when a parcel has been dispatched to the recipient.
Data Matrix codes, along with other Open Source codes such as 1D Barcodes can also be read with mobile phones by downloading code specific mobile applications. Although the majority of these mobile readers are capable of reading Data Matrix, few extend the decoding to enable mobile access and interaction, then the codes can be used securely and across media; for example, in track and trace, anti-counterfeit, e.govt, and banking solutions.
For the notes I am creating I used the the data matrix on the notes so that they can be used as a security option to be scanned to make sure they are real as well as used for counting and tracking notes.