Arduino Musical Instrument Shield

Projects Programming
1

Hi all, I'm new here.

I'm using the Musical Instrument Shield from sparkfun. For some reason, I can't get it to play specific instruments, even when i set the bank to 0x00. Specifically I want to choose the guitars but only seem limited to a few electronic-sounding instruments unless I happen upon percussion ones.

Anybody got any advice?

2

Firstly, read http://arduino.cc/forum/index.php/topic,97455.0.html
Then post the code you are trying to use. A link to the shield you are using would be helpful too.

3

Thanks for the reply. I don't know if you want me to post all my code. It's huge. Here's a link to the shield. SparkFun Music Instrument Shield - DEV-10587 - SparkFun Electronics

Here's a snipit of my code that addresses the instrument selection though.

#include <SoftwareSerial.h>

// Connect to the VS1053 on TX pin 3. RX pin 2 is not used.
SoftwareSerial midi( 2, 3 );
unsigned int prevStates[13] = {
  0};
// Sound-banks available on the VS1053.
// 0x00 : GM1 (default)
// 0x78 : Drums
// 0x79 : GM2
byte SOUND_BANK = 0x00;

// Constant used to control channel volume.
// Range : 0 - 127
int VOLUME = 90;

// Constant used to control attack and sustain velocity.
// Range : 0 - 127
int ATK_VELOCITY = 60;	//peak
int REL_VELOCITY = 60;	//sustain

// Constants used to start or stop note playback.
byte PLAY = 0x90;
byte STOP = 0x80;

// Constant used to map Arduino pin to VS1053 reset.
int VS1053_RESET = 4;

// Constant used to supress serial debugging.
boolean DEBUG = true;

// Variable used to navigate instrument selection.
int instrument = 0;

// Variable used to control note playback.
byte note = 0;

//-------------------------------button & LED parameters below-----------------
const int buttonPin = 5;     // the number of the pushbutton pin
const int buttonPin2 = 6;     // the number of the pushbutton pin
const int ledPin =  A5;      // the number of the LED pin
int currentState = 0;         // variable for reading the pushbutton status

int previousState = 0;


/**
 * Initialize debugging, connect to the VS1053, init the VS1053, and
 * set initial sound-bank and volume.
 */
void setup()
{
  Serial.begin( 57600 );                  // For debug messages

  midi.begin( 31250 );                    // MIDI control via SoftwareSerial

  pinMode( VS1053_RESET, OUTPUT );        // Reset VS1053
  digitalWrite( VS1053_RESET, LOW );      // ..
  delay( 100 );                           // ..
  digitalWrite( VS1053_RESET, HIGH );     // ..
  delay( 100 );                           // ..

  setBank( SOUND_BANK );                  // Set sound-bank via constant
  setVolume( VOLUME );                    // Set channel volume via constant
  //-------------------------------button & LED setup below-----------------
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);      
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT); 
  pinMode(buttonPin2, INPUT); 

  DDRB = (DDRB | B00000000);
  //**Gives access to PORT B as input which is digital pins 8-13... only 6 bits
  DDRC = (DDRC | B00001111);
  //**Sets first 4 bits of port C (1st 4 of 6 analog pins) to write
  //  DDRD = (DDRD | B00000000);
  //**Gives access to PORT D as input Only 5,6,7 available
}




/**
 * Some applications run forever.
 */
void loop() 
{
  //-------------------------------button & LED handling -----------------  
  //   note = 30;
  instrument = 35;
  setInstrument( instrument );
  // read the state of the pushbutton value:
4

I think my soldering wasn't so good. It seems to work right now for just about all instruments.