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Keypad Scanning Hardware/Firmware

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4.82/5 (7 votes)
14 Jan 2011CPOL7 min read 50.3K   682   15  
Scan any size switch matrix using 5 general purpose I/O ports.

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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United States United States
Currently enjoying retirement and working on projects without pressure, deadlines or any kind of management.

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