There is also a Datamatrix Code generated here( https://forums.ni.com/t5/Example-Code/Datamatrix-generate-by-labview/ta-p/4073613 ),But there is a bug inside that can cause problems when generating indexes larger than 44 * 44 symbols. I didn't study the code carefully, but I tried and there was no similar issue here, and the execution speed was faster.👍