I can use each sketch independently of the other, so I know that Bitvoicer works and the wav shield works. I am using the microphone on my laptop and the bitvoicer software interface. It isn't until I try to merge the two (I want to talk to my Arduino and have it reply with prerecorded responses) that I have problems. The problem I am facing is that once I compile the code and upload it to my Arduino Uno, (does not show any errors) the button does not work, and the commands that Bitvoicer sends don't seem to work either. I just tested Bitvoicer with an old project I did last year and it works fine. I also tested the wav shield with the 6 button sketch mentioned above and that works fine.
Now I am just saying "hello" to Bitvoicer and trying to get the Wav Shield to play a hello.wav file in response.
I posted the code that I am working with. I left as many comments from the original writers as possible.
Isaac
Code: Select all
#include <FatReader.h>
#include <SdReader.h>
#include <avr/pgmspace.h>
#include "WaveUtil.h"
#include "WaveHC.h"
#include <BitVoicer11.h>
BitVoicerSerial bvSerial = BitVoicerSerial(); //Stores true if the Audio Streaming Calibration tool is running
boolean sampleTest = false; //Stores the data type retrieved by getData()
byte dataType = 0; //Sets up the pins and default variables
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() {
//Sets the analog reference to external (AREF pin) //WARNING!!! If anything is conected to the AREF pin, //this function MUST be called first. Otherwise, it will //damage the board. bvSerial.setAnalogReference(BV_EXTERNAL);
//Sets up the microcontroller to perform faster analog reads
//on the specified pin
bvSerial.setAudioInput(1);
//Starts serial communication at 115200 bps// Serial.begin(9600);
Serial.begin(115200); //Sets up the pinModes
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() {
//Captures audio and sends it to BitVoicer if the Audio
//Streaming Calibration Tool is running
if (sampleTest == true)
{
//The value passed to the function is the time
//(in microseconds) that the function has to wait before
//performing the reading. It is used to achieve about
//8000 readings per second.
bvSerial.BANNED(46);
}
//Captures audio and sends it to BitVoicer if the Speech
//Recognition Engine is running
if (bvSerial.engineRunning)
{
//The value passed to the function is the time
//(in microseconds) that the function has to wait before
//performing the reading. It is used to achieve about
//8000 readings per second.
bvSerial.BANNED(46);
}
}
//This function runs every time serial data is available
//in the serial buffer after a loop
void serialEvent()
{
//Reads the serial buffer and stores the received data type
dataType = bvSerial.getData();
//Changes the value of sampleTest if the received data was
//the start/stop sampling command
if (dataType == BV_COMMAND)
sampleTest = bvSerial.cmdData;
//Signals BitVoicer's Speech Recognition Engine to start
//listening to audio streams after the engineRunning status
//was received
if (dataType == BV_STATUS && bvSerial.engineRunning == true)
bvSerial.startStopListening();
//Checks if the data type is the same as the one in the
//Voice Schema
if (dataType == BV_STR)
setLEDs();
}
//Performs the LED changes according to the value in
//bvSerial.strData
void setLEDs()
{
if (bvSerial.strData == "hello")
byte i;
if (justpressed[0]) {
justpressed[0] = 0;
playcomplete("Hello.WAV");
}
if (justpressed[1]) {
justpressed[1] = 0;
playcomplete("RE.WAV");
}
if (justpressed[2]) {
justpressed[2] = 0;
playcomplete("MI.WAV");
}
if (justpressed[3]) {
justpressed[3] = 0;
playcomplete("FA.WAV");
}
if (justpressed[4]) {
justpressed[4] = 0;
playcomplete("SO.WAV");
}
if (justpressed[5]) {
justpressed[5] = 0;
playcomplete("LA.WAV");
}
}
// 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();
}