File content as of revision 1:549f56cb4740:

#include <mbed.h>
#include <mpr121.h>
#include "mbed.h"
#include "uLCD_4DGL.h"
#include "SDFileSystem.h"
#include "FATFileSystem.h"
#include "wave_player.h"
#include <stdio.h>
#include "Speaker.h"
#include "rtos.h"

//Class to control an RGB LED using three PWM pins
class RGBLed
{
public:
    RGBLed(PinName redpin, PinName greenpin, PinName bluepin);
    void write(float red,float green, float blue);
private:
    PwmOut _redpin;
    PwmOut _greenpin;
    PwmOut _bluepin;
};
 
RGBLed::RGBLed (PinName redpin, PinName greenpin, PinName bluepin)
    : _redpin(redpin), _greenpin(greenpin), _bluepin(bluepin)
{
    //50Hz PWM clock default a bit too low, go to 2000Hz (less flicker)
    _redpin.period(0.0005);
}
 
void RGBLed::write(float red,float green, float blue)
{
    _redpin = red;
    _greenpin = green;
    _bluepin = blue;
}
 
//Setup RGB led using PWM pins and class
RGBLed myRGBled(p21,p22,p23); //RGB PWM pins

DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);
// Create the interrupt receiver object on pin 26
InterruptIn interrupt(p26);
// Setup the i2c bus on pins 9 and 10
I2C i2c(p9, p10);
// Setup the Mpr121:
// constructor(i2c object, i2c address of the mpr121)
Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);

//SDFileSystem sd(p5, p6, p7, p8, "sd");
uLCD_4DGL uLCD(p13,p14,p11);

//AnalogOut DACout(p18);
//wave_player waver(&DACout);
//FILE *wave_file;

 int key_code;
// Key hit/release interrupt routine
void fallInterrupt() {
  key_code=0;
  int i=0;
  int value=mpr121.read(0x00);
  value +=mpr121.read(0x01)<<8;
  // LED demo mod
  i=0;
  // puts key number out to LEDs for demo
  for (i=0; i<12; i++) {
  if (((value>>i)&0x01)==1) key_code=i+1;
  }
  led4=key_code & 0x01;
  led3=(key_code>>1) & 0x01;
  led2=(key_code>>2) & 0x01;
  led1=(key_code>>3) & 0x01;
}

void song1(void const *args) {
    
}

int main() {
//  SongPlayer mySpeaker(p25);
Speaker mySpeaker(p25);
  interrupt.fall(&fallInterrupt);
  interrupt.mode(PullUp);
 
uLCD.printf("welcome :)");
wait(2.0);
//uLCD.locate(3,3);
//uLCD.text_width(4);
//uLCD.text_height(4);
int song[14] = {1, 1,8,8,10,10,8,6,6,5,5,3,3,1};
char note[14] = {'C','C','G','G','A','A','G','F','F','E','E','D','D','C'};
int i= 0;
  while (1) {
    
    if(true) {
        //uLCD.printf("starting song");
        wait(1.0);
        while(i <14) {
       // uLCD.cls();
        uLCD.locate(3,3);
        uLCD.text_width(4);
        uLCD.text_height(4);
        uLCD.printf("%s",note[i]);
        
        switch(key_code) //uses a case statement for each individual touch sensor
          {
          case 1:
          mySpeaker.PlayNote(261.6256, 0.5, 0.5);
          break;
          case 2:
          mySpeaker.PlayNote(277.1826, 0.5, 0.5);
          break;
          case 3:
          mySpeaker.PlayNote(293.6648, 0.5, 0.5);
          break;
          case 4:
          mySpeaker.PlayNote(311.1270, 0.5, 0.5);
          break;
          case 5:
          mySpeaker.PlayNote(329.6276, 0.5, 0.5);
          break;
          case 6:
          mySpeaker.PlayNote(349.2282, 0.5, 0.5);
          break;
          case 7:
          mySpeaker.PlayNote(369.9944, 0.5, 0.5);
          break;
          case 8:
          mySpeaker.PlayNote(391.9954, 0.5, 0.5);
          break;
          case 9:
          mySpeaker.PlayNote(415.3047, 0.5, 0.5);
          break;
          case 10:
          mySpeaker.PlayNote(440.0, 0.5, 0.5);
          break;
          case 11:
          mySpeaker.PlayNote(466.1638, 0.5, 0.5);
          break;
          case 12:
          mySpeaker.PlayNote(493.8833, 0.5, 0.5);
          break;
          }              
            
        if(song[i]==key_code){
            myRGBled.write(0.0,1.0,0.0 );
            i++;
        } else if (song[i] != key_code) {
            myRGBled.write(1.0,0.0,0.0 );
        } else if (key_code == 0) {
            myRGBled.write(0.0,1.0,0.0 );
        }

        }
        i = 0;
        
    } else {
    switch(key_code) //uses a case statement for each individual touch sensor
      {
      case 1:
      uLCD.cls();
      uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("C");
      //printf("%d", key_code);
      myRGBled.write(0.0,0.0,1.0 );
//      wave_file=fopen("/sd/wavfiles/imperial_march.wav","r");
//      waver.play(wave_file);
//      fclose(wave_file);
      mySpeaker.PlayNote(261.6256, 0.5, 0.5);
      break;
      case 2:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("CS");
      myRGBled.write(1.0,0.0,0.0 );
      mySpeaker.PlayNote(277.1826, 0.5, 0.5);
      break;
      case 3:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("D");
      myRGBled.write(0.0,1.0,0.0 );
      mySpeaker.PlayNote(293.6648, 0.5, 0.5);
      break;
      case 4:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("DS");
      mySpeaker.PlayNote(311.1270, 0.5, 0.5);
      break;
      case 5:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("E");
      mySpeaker.PlayNote(329.6276, 0.5, 0.5);
      break;
      case 6:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("F");
      mySpeaker.PlayNote(349.2282, 0.5, 0.5);
      break;
      case 7:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("FS");
      mySpeaker.PlayNote(369.9944, 0.5, 0.5);
      break;
      case 8:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("G");
      mySpeaker.PlayNote(391.9954, 0.5, 0.5);
      break;
      case 9:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("GS");
      mySpeaker.PlayNote(415.3047, 0.5, 0.5);
      break;
      case 10:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("A");
      mySpeaker.PlayNote(440.0, 0.5, 0.5);
      break;
      case 11:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("AS");
      mySpeaker.PlayNote(466.1638, 0.5, 0.5);
      break;
      case 12:
      uLCD.cls();
    uLCD.locate(6,6);
    uLCD.text_width(5);
    uLCD.text_height(5);
      uLCD.printf("B");
      mySpeaker.PlayNote(493.8833, 0.5, 0.5);
      break;
      }
    }
    }
}