Ok, so I'm trying to play one of 4 different sound files with the use of the Adafruit Wave shield.Adafruit Wave Shield for Arduino Kit [v1.1] : ID 94 : $22.00 : Adafruit Industries, Unique & fun DIY electronics and kits I'm using a resistor ladder so all 4 buttons are wired in through Analog 0. My problem is that when a sound file is played, the board stops reading the input until the sound file is complete. Where am I going wrong, I know it should just be a simple line of code or two. I converted the code for the musical keyboard from Adafruit's website.http://learn.adafruit.com/system/assets/assets/000/010/345/original/wavehc_play6singlekeyonce.pde.txt Thanks for reading
#include <FatReader.h>
#include <SdReader.h>
#include <avr/pgmspace.h>
#include "WaveUtil.h"
#include "WaveHC.h"
int analogPin = 0;
int val = 0;
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
FatReader f; // This holds the information for the file we're play
WaveHC wave; // This is the only wave (audio) object, since we will only play one at a time
#define DEBOUNCE 5 // button debouncer
// here is where we define the buttons that we'll use. button "1" is the first, button "6" is the 6th, etc
byte buttons[] = {14, 15, 16, 17, 18, 19};
// This handy macro lets us determine how big the array up above is, by checking the size
#define NUMBUTTONS sizeof(buttons)
// we will track if a button is just pressed, just released, or 'pressed' (the current state
volatile byte pressed[NUMBUTTONS], justpressed[NUMBUTTONS], justreleased[NUMBUTTONS];
// 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;
}
void sdErrorCheck(void)
{
if (!card.errorCode()) return;
putstring("\n\rSD I/O error: ");
Serial.print(card.errorCode(), HEX);
putstring(", ");
Serial.println(card.errorData(), HEX);
while(1);
}
void setup() {
byte i;
// set up serial port
Serial.begin(9600);
putstring_nl("WaveHC with ");
Serial.print(NUMBUTTONS, DEC);
putstring_nl("buttons");
putstring("Free RAM: "); // This can help with debugging, running out of RAM is bad
Serial.println(freeRam()); // if this is under 150 bytes it may spell trouble!
// 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);
// pin13 LED
pinMode(13, OUTPUT);
// Make input & enable pull-up resistors on switch pins
for (i=0; i< NUMBUTTONS; i++) {
pinMode(buttons[i], INPUT);
digitalWrite(buttons[i], HIGH);
}
// 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
sdErrorCheck();
while(1); // then 'halt' - do nothing!
}
// enable optimize read - some cards may timeout. Disable if you're having problems
card.partialBlockRead(true);
// 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 :(
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("Ready!");
TCCR2A = 0;
TCCR2B = 1<<CS22 | 1<<CS21 | 1<<CS20;
//Timer2 Overflow Interrupt Enable
TIMSK2 |= 1<<TOIE2;
}
SIGNAL(TIMER2_OVF_vect) {
check_switches();
}
void check_switches()
{
static byte previousstate[NUMBUTTONS];
static byte currentstate[NUMBUTTONS];
byte index;
for (index = 0; index < NUMBUTTONS; index++) {
currentstate[index] = digitalRead(buttons[index]); // read the button
/*
Serial.print(index, DEC);
Serial.print(": cstate=");
Serial.print(currentstate[index], DEC);
Serial.print(", pstate=");
Serial.print(previousstate[index], DEC);
Serial.print(", press=");
*/
if (currentstate[index] == previousstate[index]) {
if ((pressed[index] == LOW) && (currentstate[index] == LOW)) {
// just pressed
justpressed[index] = 1;
}
else if ((pressed[index] == HIGH) && (currentstate[index] == HIGH)) {
// just released
justreleased[index] = 1;
}
pressed[index] = !currentstate[index]; // remember, digital HIGH means NOT pressed
}
//Serial.println(pressed[index], DEC);
previousstate[index] = currentstate[index]; // keep a running tally of the buttons
}
}
void loop() {
byte i;
val = analogRead(analogPin);
Serial.println(val);
int analog0;
analog0 = analogRead(0);
if (analog0 > 465 && analog0 < 484) {
justpressed[0] = 0;
playfile("1.WAV");
while (wave.isplaying && analog0 > 465 && analog0 < 484) {
//Serial.print(".");
}
wave.stop();
}
if (analog0 > 484 && analog0 < 495) {
justpressed[1] = 0;
playfile("2.WAV");
while (wave.isplaying && analog0 > 484 && analog0 < 495) {
//Serial.print(".");
}
wave.stop();
}
if (analog0 > 495 && analog0 < 510) {
justpressed[2] = 0;
playfile("3.WAV");
while (wave.isplaying && analog0 > 495 && analog0 < 510) {
//Serial.print(".");
}
wave.stop();
}
if (analog0 > 520 && analog0 < 540) {
justpressed[3] = 0;
playfile("4.WAV");
while (wave.isplaying && analog0 > 520 && analog0 < 540) {
//Serial.print(".");
}
wave.stop();
}
}
// Plays a full file from beginning to end with no pause.
void playcomplete(char *name) {
// call our helper to find and play this name
playfile(name);
while (wave.isplaying) {
// do nothing while its playing
}
// now its done playing
}
void playfile(char *name) {
// see if the wave object is currently doing something
if (wave.isplaying) {// already playing something, so stop it!
wave.stop(); // stop it
}
// look in the root directory and open the file
if (!f.open(root, name)) {
putstring("Couldn't open file "); Serial.print(name); return;
}
// OK read the file and turn it into a wave object
if (!wave.create(f)) {
putstring_nl("Not a valid WAV"); return;
}
// ok time to play! start playback
wave.play();
}
