Designed a state machine to scan and debounce 16 key Keypad. Implemented RTL coding of a sequential state machine to implement a keypad scanner. Displayed number of keystrokes and the key value of the ...
16-button keypads have a clever method of encoding their data into 8 pins. Pins are mapped to four rows and four columns on the keypad. A user reads the keypad by bringing each row up to logic: HIGH, ...
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