The 3 x 4 12 button keypad is basically used for user input. The buttons are setup in matrix format. The connections are very easy just wire the pins form 2-8 to corresponding red numbers above.
Read moreThe 3 x 4 12 button keypad is basically used for user input. The buttons are setup in matrix format. The connections are very easy just wire the pins form 2-8 to corresponding red numbers above.
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