can someone read 2d barcode?

can someone read 2d barcode?
can someone read any 2d barcode like datamatrix or QR. how are they read by machines? just curious. if there is a mathematical code what is it? (as long as their are no legal privacy issues)
i wanted to try writing a message in it. just something that seemed cool.
basically manually read/write matrix barcode

Best answer:

Data is encoded in both the horizontal and vertical dimensions. As more data is encoded the size of the barcode can be increased in both the horizontal and vertical directions.

they do follow the same principles of linear barcodes in terms of decoding.

There are various encoding algorithms used in barcodes which make them so convenient to use. A website which may help you:

intelcom.ru/2d/english/index_old.php

Tags: Barcode, read, someone

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