Key Pad w/ Serial Monitor | Arduino

SOURCE CODE:

//Keypad Serial Monitor

#include <Keypad.h>

const byte ROWS = 4; //four rows const byte COLS = 4; //four columns //define the cymbols on the buttons of the keypads char hexaKeys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = {9, 8, 7, 6}; //connect to the row pinouts of the keypad byte colPins[COLS] = {5, 4, 3, 2}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

void setup(){ Serial.begin(9600); } void loop(){ char customKey = customKeypad.getKey(); if (customKey){ Serial.println(customKey); delay(100); } }