Sistematizador de Fala

La gente buena … Tengo una duda en mi proyecto “carácter sistemático habla.” He estado buscando un foro: # p125438

Me pregunto si con este código se puede introducir datos en las entradas que desea que se abra el archivo que queremos!

Tengo un código para trabajar con el escudo de Arduino de onda que se repite los sonidos que están en la tarjeta de memoria, pero siempre repite los sonidos sin parar! Y yo quería que este asunto el único sonido que llegamos a la entrada: /

Espero alguna ayuda de ustedes, ya que no soy más ideas para resolver este problema sonriente triste

Saludos smiley-confundir

P. S. El código que estoy utilizando, y esto sin repetir los sonidos que hacemos en las entradas se puede encontrar aquí:

#include <FatReader.h>
#include <SdReader.h>
#include <avr/pgmspace.h>
#include “WaveUtil.h”
#include “WaveHC.h”

SdReader card; // This object holds the information for the card
FatVolume vol; // This holds the information for the partition on the card
FatReader root; // This holds the information for the filesystem on the card

uint8_t dirLevel; // indent level for file/dir names (for prettyprinting)
dir_t dirBuf; // buffer for directory reads

WaveHC wave; // This is the only wave (audio) object, since we will only play one at a time

// Function definitions (we define them here, but the code is below)
void lsR(FatReader &d);
void play(FatReader &dir);

void setup() {
Serial.begin(9600); // set up Serial library at 9600 bps for debugging

putstring_nl("\nWave test!"); // say we woke up!

putstring("Free RAM: "); // This can help with debugging, running out of RAM is bad

// Set the output pins for the DAC control. This pins are defined in the library
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);

// if (!card.init(true)) { //play with 4 MHz spi if 8MHz isn’t working for you
if (!card.init()) { //play with 8 MHz spi (default faster!)
putstring_nl(“Card init. failed!”); // Something went wrong, lets print out why
while(1); // then ‘halt’ - do nothing!

// enable optimize read - some cards may timeout. Disable if you’re having problems

// Now we will look for a FAT partition!
uint8_t part;
for (part = 0; part < 5; part++) { // we have up to 5 slots to look in
if (vol.init(card, part))
break; // we found one, lets bail
if (part == 5) { // if we ended up not finding one smiley-sad
putstring_nl(“No valid FAT partition!”);
sdErrorCheck(); // Something went wrong, lets print out why
while(1); // then ‘halt’ - do nothing!

// Lets tell the user about what we found
putstring(“Using partition “);
Serial.print(part, DEC);
putstring(”, type is FAT”);
Serial.println(vol.fatType(),DEC); // FAT16 or FAT32?

// Try to open the root directory
if (!root.openRoot(vol)) {
putstring_nl(“Can’t open root dir!”); // Something went wrong,
while(1); // then ‘halt’ - do nothing!

// Whew! We got past the tough parts.
putstring_nl(“Files found:”);
dirLevel = 0;
// Print out all of the files in all the directories.

//////////////////////////////////// LOOP
void loop() {


/////////////////////////////////// HELPERS

// this handy function will return the number of bytes currently free in RAM, great for debugging!
int freeRam(void)
extern int __bss_end;
extern int *__brkval;
int free_memory;
if((int)__brkval == 0) {
free_memory = ((int)&free_memory) - ((int)&__bss_end);
else {
free_memory = ((int)&free_memory) - ((int)__brkval);
return free_memory;


  • print error message and halt if SD I/O error, great for debugging!
    void sdErrorCheck(void)
    if (!card.errorCode()) return;
    putstring("\n\rSD I/O error: “);
    Serial.print(card.errorCode(), HEX);
    putstring(”, ");
    Serial.println(card.errorData(), HEX);
  • print dir_t name field. The output is 8.3 format, so like SOUND.WAV or FILENAME.DAT
    void printName(dir_t &dir)
    for (uint8_t i = 0; i < 11; i++) { // 8.3 format has 8+3 = 11 letters in it
    if ( == ’ ‘)
    continue; // dont print any spaces in the name
    if (i == smiley-cool
    Serial.print(’.’); // after the 8th letter, place a dot
    Serial.print(; // print the n’th digit
    if (DIR_IS_SUBDIR(dir))
    Serial.print(’/’); // directories get a / at the end
  • list recursively - possible stack overflow if subdirectories too nested
    void lsR(FatReader &d)
    int8_t r; // indicates the level of recursion

while ((r = d.readDir(dirBuf)) > 0) { // read the next file in the directory
// skip subdirs . and …
if ([0] == ‘.’)

for (uint8_t i = 0; i < dirLevel; i++)
Serial.print(’ '); // this is for prettyprinting, put spaces in front
printName(dirBuf); // print the name of the file we just found
Serial.println(); // and a new line

if (DIR_IS_SUBDIR(dirBuf)) { // we will recurse on any direcory
FatReader s; // make a new directory object to hold information
dirLevel += 2; // indent 2 spaces for future prints
if (, dirBuf))
lsR(s); // list all the files in this directory now!
dirLevel -=2; // remove the extra indentation
sdErrorCheck(); // are we doign OK?

  • play recursively - possible stack overflow if subdirectories too nested
    void play(FatReader &dir)
    FatReader file;
    while (dir.readDir(dirBuf) > 0) { // Read every file in the directory one at a time
    // skip . and … directories
    if ([0] == ‘.’)

Serial.println(); // clear out a new line

for (uint8_t i = 0; i < dirLevel; i++)
Serial.print(’ '); // this is for prettyprinting, put spaces in front

if (!, dirBuf)) { // open the file in the directory
Serial.println(“ failed”); // something went wrong smiley-sad
while(1); // halt

if (file.isDir()) { // check if we opened a new directory
putstring("Subdir: ");
dirLevel += 2; // add more spaces
// play files in subdirectory
play(file); // recursive!
dirLevel -= 2;
else {
// Aha! we found a file that isnt a directory
putstring(“Playing “); printName(dirBuf); // print it out
if (!wave.create(file)) { // Figure out, is it a WAV proper?
putstring(” Not a valid WAV”); // ok skip it
} else {
Serial.println(); // Hooray it IS a WAV proper!; // make some noise!

while (wave.isplaying) { // playing occurs in interrupts, so we print dots in realtime
sdErrorCheck(); // everything OK?
// if (wave.errors)Serial.println(wave.errors); // wave decoding errors