Question: Write an Arduino Metro Mini ( UNO ) program that will poll the keypad and echo the pressed key to the terminal program using the

Write an Arduino Metro Mini (UNO) program that will poll the keypad and echo the pressed
key to the terminal program using the Serial.print command. The metro mini will also
need to recognize when the buttons are pressed. When the first button is pressed, print
Button 1 to the terminal. When the second button is pressed, print Button 2 to
the terminal.

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