Hi there,
I am almost there where I wanna be. I have a wave shield on an Arduino Uno. I do get the .wav files to play randomly (unfortunately it plays them all randomly and not just one, but is not the most important question).
I am still struggling with the servo. During my investigation I discovered that you can't include the wave.hc library and the servo library (they use both the build in timer?!). I also discovered that you can work with a servo, without really mention it in the code. I connected a wire form R7 of the wave shield (the voltage change with the volume of the sound) and connect it on an analog port (A5). Then put ( 8 ) as pwm output. This seems to work... so now and then.
Can somebody check my code and see if this is 'a' way to do it? Should I still convert the incomming voltage to a digital output? Any advice is welcome.
The lines which I used for the servo are marked with //servo test. (two lines in the beginning, one line under void setup() and a few almost at the end.
Thanks in advance
[code]
#include <FatReader.h>
#include <SdReader.h>
#include <avr/pgmspace.h>
#include "WaveUtil.h"
#include "WaveHC.h"
int songCount = 9; // total of .WAV files
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
int eyeLedsPin = 12; //Toegevoegd
//servo test
const int pwm = 8; //naming pin 8 as 'pwm' variable
const int adc = 5; //naming pin 5 of analog input side as 'adc'
// 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() {
Serial.begin(9600); // set up serial library at 9600 bps for debugging
putstring_nl("WaveHC with 1 button");
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);
//servo test
pinMode(pwm,OUTPUT); //setting pin 8 as output (denk wvt. aan { } toepassen)
// pin12 LED
pinMode(12, OUTPUT); //Led eyes (Misschien A4, aangestuurd door volt uitlezing
randomSeed(analogRead(0)); //Pin A0 niet benutten, geeft randomfunctie door interferentie?
//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 ("Files found (* = fragmented):"); //("Ready!");
root.ls(LS_R | LS_FLAG_FRAGMENTED);
}
void loop() {
int songNumber = random(songCount+1);
Serial.println(songNumber);
switch(songNumber)
{
case 0:
playcomplete("GHSTBRTH.WAV");
break;
case 1:
playcomplete("BLFMTJPT.WAV");
break;
case 2:
playcomplete("MTJNMDR.WAV");
break;
case 3:
playcomplete("YCNNTLV.WAV");
break;
case 4:
playcomplete("DRCLLGH.WAV");
break;
case 5:
playcomplete("HWMTJHR.WAV");
break;
case 6:
playcomplete("SCRCRW.WAV");
break;
case 7:
playcomplete("WEREWOLF.WAV");
break;
case 8:
playcomplete("KNCKKNCK");
break;
}
}
// 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) {
// Servo test (old remark:do nothing while its playing)
{
int adc = analogRead(50) ; //analog voltage and storing it in an integer
adc = map(adc, 0, 1023, 0, 255); //keep it between 0, 255
/* ----------map funtion------------the above funtion scales the output of adc, which is 10 bit and gives values btw 0 to 1023, in values btw 0 to 255 form analogWrite funtion which only receives values btw this range
*/
analogWrite(pwm,adc) ;
}
}
// 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();
}
[/code]