Matrix driver for HDSP-200x four character 5x7 alphanumeric displays. These are 12 pin DIL package ICs full of LEDs arranged in 4 characters of 5 columns & 7 rows each. The ones I have are the yellow HDSP-2001, but they are also available in red (HDSP-2000), high efficiency red (HDSP-2002) or green (HDSP 2003). I don't know if they are easily available anymore, but I thought, since I've got 30 or so, I'd have a go at programming them. See my notepad ( for videos of this working.

Dependents:   alpha_message TP1_matriz

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Files at revision 0:69eeea586a16

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matrix.h 13308 Revisions Annotate
matrixDisplay.cpp 2918 Revisions Annotate
matrixDisplay.h 1494 Revisions Annotate