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Friday, February 15, 2013

Dual MCP23008's based keypad



http://www.blogger.com/blogger.g?blogID=1840459474737789074#editor/target=post;postID=8953964586105556846

Now that the 2 MCP23008's are tested more or less OK, I am thinking of playing with a decimal keypad.  This time I will use one MCP23008 for the 3 rows, and another for the 4 columns.

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