Question

I want to encode more than 1kb of data.But i tried using datamatrix .But in datamatrix we can’t encode 1kb of data.Is there any other 2D technology are there to encode more than 1kb of data?

Answer 1

QR codes can hold up-to 2.9 kb binary data (or up-to ~7 kb numerics only).
For more info, click here.

The amount of data that can be stored in the QR Code symbol depends on
the datatype (mode, or input character set), version (1,…,40,
indicating the overall dimensions of the symbol), and error correction
level. The maximum storage capacities occur for 40-L symbols (version
40, error correction level L), and are as follows (where character
refers to individual values of the input mode/datatype, as indicated):

Numeric only    Max. 7,089 characters (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
Alphanumeric    Max. 4,296 characters (0–9, A–Z [upper-case only], space, $, %, *, +, -, ., /, :)
Binary/byte     Max. 2,953 characters (8-bit bytes) (23624 bits)
Kanji/Kana      Max. 1,817 characters