Ehez a 4x4 membrános keypad valakinek sikerült már bekötést találnia?
#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] = {
{'0','1','2','3'},
{'4','5','6','7'},
{'8','9','A','B'},
{'C','D','E','F'}
};
byte rowPins[ROWS] = {3, 2, 1, 0}; //connect to the row pinouts of the keypad digital pin
byte colPins[COLS] = {7, 6, 5, 4}; //connect to the column pinouts of the keypad digital pin
//initialize an instance of class NewKeypad
Keypad cusomKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
void setup(){
Serial.begin(9600);
}
void loop(){
char customKey = cusomKeypad.getKey();
if (customKey != NO_KEY){
Serial.println(customKey);
}
}
keypadnak van 1...8 lába de melyik a COLS 1..4 és a ROWS 1...4 ?
