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Read a 4x4 keypad using just one Arduino pin

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4X41P

Read a 4x4 keypad using just one Arduino pin

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Compile Information Arduino Uno

Sketch uses 1792 bytes (5%) of program storage space. Maximum is 32256 bytes.

Global variables use 242 bytes (11%) of dynamic memory, leaving 1806 bytes for local variables. Maximum is 2048 bytes.

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Read a 4x4 keypad using just one Arduino pin

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