Dot matrix GUI interface through serial

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hi, i'm first time poster on form have received lot of on form since started micro controllers.

my question whether there gui interface program image or selected bits on led matrix or led cube. i've been struggling fin simple piece of freeware allow met interface pc.

i'm considering writing own program to of great if there example work from. 

yes, there free programs this, , easy find on google. output hex codes binary code set rows or bitshift magical things. programs may not output directly, have set handling of data if trying send pc.

what dimensions of matrix?


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