Connecting a 4X4 Membrane Keypad to an Arduino

You can use any Arduino compatible board with 8 free digital pins First install the Keypad Library In the Arduino IDE go to: Sketch->Include Library->Manage Libraries,then search for Keypad and install. Open the example sketch and edit it. Example–>Keypad–>HelloKeypad #include <Keypad.h> const byte ROWS = 4; //four rows const byte COLS = 4; //four columns char... Continue Reading →

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