Posted on Monday, May 19th, 2014 in Arduino, hacks by DP
Raj of Embedded Lab has writen an article about his latest project, an encoded 4×4 matrix keypad using MM74C922:
In this project, we are building a simplified 16-switch keypad using the MM74C922 encoder chip, which converts a key switch closure to a 4-bit nibble output.
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on Monday, May 19th, 2014 at 8:10 pm and is filed under Arduino
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