Arduino's Matricial Keyboard with tone Code

Code:

#include <Keypad.h>
#include "pitches.h"
const unsigned long period = 50;
unsigned long prevMillis = 0;
#define BUFFERSIZE 160
#define octsup 10

const byte ROWS = 4; //Numero de filas del teclado que se esta usando
const byte COLS = 4; //Numero de columnas del teclado que se esta usando
char tecla;

char hexaKeys[ROWS][COLS] = //Aquí pondremos la disposición de los caracteres tal cual están en nuestro teclado
{
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};

byte rowPins[ROWS] = {9, 8, 7, 6}; //Seleccionamos los pines en el arduino donde iran conectadas las filas
byte colPins[COLS] = {5, 4, 3, 2}; //Seleccionamos los pines en el arduino donde iran conectadas las columnas

Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS); //inicializa el teclado

int Tono1[14] = {};
int Tono[] = {0,NOTE_C4,NOTE_CS4,NOTE_D4,NOTE_DS4,NOTE_E4,NOTE_F4,NOTE_FS4,NOTE_G4,NOTE_GS4,NOTE_A4,NOTE_AS4,NOTE_B4,NOTE_C5};
int Tono2[] = {0,NOTE_C5,NOTE_CS5,NOTE_D5,NOTE_DS5,NOTE_E5,NOTE_F5,NOTE_FS5,NOTE_G5,NOTE_GS5,NOTE_A5,NOTE_AS5,NOTE_B5,NOTE_C6};

int recorder[BUFFERSIZE];
unsigned long interval[BUFFERSIZE];
unsigned long pauseInterval[BUFFERSIZE];
int count = 0;

int length = sizeof Tono/sizeof *Tono;

void setup() {
Serial.begin(9600);
pinMode(13, OUTPUT); //Pin 13 como salida
pinMode(octsup, INPUT); //Pin 10 como entrada
pinMode(11, INPUT); //Pin 11 como entrada
}

void loop(){
leerteclado();
}

void leerteclado(){

if(count>=BUFFERSIZE) count=0; // prevent buffer overflow

 if (millis() - prevMillis > period)   // Espera no bloqueante

{
prevMillis = millis();

char customKey = customKeypad.getKey(); //se guarda en la variable customKey el caracter de la tecla presionada

if (customKey != NO_KEY) //se evalúa si se presionó una tecla
{

 Serial.println(customKey);//se imprime en el puerto serie la tecla presionada

   int i=0;
   //int index;
   
    if(customKey =='1') {i=1;}
    if(customKey =='2') {i=2;}
    if(customKey =='3') {i=3;}
    if(customKey =='A') {i=4;}
    if(customKey =='4') {i=5;}
    if(customKey =='5') {i=6;}
    if(customKey =='6') {i=7;}
    if(customKey =='B') {i=8;}
    if(customKey =='7') {i=9;}
    if(customKey =='8') {i=10;}
    if(customKey =='9') {i=11;}
    if(customKey =='C') {i=12;}
    if(customKey =='*') {i=13;}
    
    if(customKey =='0') { //Grabar
      for(int i=0; i<count; i++){
      recorder[i]=i;
}
count = 0;

// return 0;
// grabar();*/

    }
    if(customKey =='#') { //Parar
   //   i=0;
    noTone(13);
  }
    if(customKey =='D') { }//Reproducir grabación
    


tone(13,Tono[i],200);
 }
 if (digitalRead (octsup == HIGH)) {
     for (int i=0; i<8; i++){
       if(i =='0'){
       Tono[i] == Tono[i]
       }
       if(i =='1'){
       Tono[i] == Tono[i+13];
       }
     }
//     break;
   }

// si soltamos el pulsador activo apagamos cortamos el sonido
if (digitalRead(octsup) == LOW) {
noTone(13);
}
}
}

pitches.h

/*************************************************

• Public Constants
  *************************************************/

#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978