File content as of revision 6:2450dc369670:

#include "mbed.h"
#include "rtos.h"
#include "notes.h"
#include "SDFileSystem.h"
#include <string>
#include <sstream>
#include <iostream>
#include <cstdlib>

Thread motor;
SDFileSystem sd(p5, p6, p7, p8, "sd");
Serial pc(USBTX, USBRX); // tx, rx
class Note {
public:
    int midiNote;
    float start;
    float stop;
    Note(int midi, float sta, float sto) {
        start = sta;
        stop = sto;
        midiNote = midi;
        }
    };
        


DigitalOut led1(LED2);
DigitalOut f1(p21);
DigitalOut f2(p22);
DigitalOut f3(p23);
DigitalOut m1e(p17);
DigitalOut m2e(p18);
DigitalOut m3e(p19);
Ticker t1;
Ticker t2;
Ticker t3;
float motor1stop;
float motor2stop;
float motor3stop;

Timer motor1timer;
 void flip1()
{
    f1 = !f1;
}
void flip2()
{
    f2 = !f2;
}
void flip3(){
    f3 = !f3;
}
/*
Takes the midi number in from the array and then converts it to a frequency in hz;
*/
float midi2freq(float midi){
    return 440.0*powf(2.0, (midi-69)/12);
}

int main() {
    f1 = 0;
    f2 = 0;
    f3 = 0;
    m1e = 0;
    m2e = 0;
    m3e = 0;
    motor1stop = 0;
    motor2stop = 0;
    motor3stop = 0;

     bool holdNotes = 0; //Stop reading notes file
     bool holdStart = 0; //Stop reading start times
     bool holdFinish = 0; //Stop reading in finish times
     pc.baud(115200);
     const char * d;
     std::string str = "123.4567";
     d = str.c_str();
    // convert string to float
    float num_float = std::atof(d);

    // convert string to double
    //pc.printf("%f\n", num_float-1.0);
    int temp = 0;

    pc.printf("Hello World!");
    string output = "";

    FILE *fpn = fopen("/sd/notesmatrix.txt", "r");
    FILE *fpstart = fopen("/sd/notesstart.txt", "r");
    FILE *fpfinish = fopen("/sd/notesfinish.txt","r");
    unsigned char c;
    //pc.printf("I'm here\n");
    Note myNote = Note(0, 0, 0);
     motor1timer.start();
    while (!feof(fpn)){                        // while not end of file
        while(!holdNotes) {
           c = fgetc(fpn);                         // get a character/byte from the file
           if(c == ','){
               stringstream degree(output);
               degree >> temp;
               //pc.printf("%d\n", temp);
                myNote.midiNote = temp;
               output = "";
               holdNotes = 1;
           } else {
          output += c;
          }
        }

    output = "";
        while(!holdStart) {
            c = fgetc(fpstart);
            if(c == ','){
                d = output.c_str();
                num_float = std::atof(d);
                //pc.printf("%f\n", num_float);
                output = "";  
                myNote.start = num_float;
                holdStart = 1;
            } else {
                output+= c;
             }
           
        }
    output = "";
    while(!holdFinish){
        c = fgetc(fpfinish);
        if(c == ','){
            d = output.c_str();
            num_float = std::atof(d);
            //pc.printf("%f\n", num_float);
            output = "";  
            myNote.stop = num_float;
            holdFinish = 1;
        } else {
           output+= c;
           }
           
    } //ONCE WE REACH THIS POINT ALL PARTS OF THE NOTE OBJECT SHOULD BE SET
    if(motor1stop< motor1timer.read()) {
        t1.detach();
        m1e = 0;
    }
    if(motor2stop< motor1timer.read()){
        t2.detach();
        m2e = 0;
    }
    if(motor3stop< motor1timer.read()) {
        t3.detach();
        m3e = 0;
    }
    
    if(myNote.start <= motor1timer.read()){
            if(motor1stop < motor1timer.read()) { //Check if we should add it
                t1.attach(&flip1, .5/midi2freq(myNote.midiNote)); //
                motor1stop = myNote.stop+motor1timer.read();
                m1e = 1;
                holdNotes = 0; 
                holdStart = 0;
                holdFinish = 0;
            } else if(motor2stop < motor1timer.read()) {
                t2.attach(&flip2, .5/midi2freq(myNote.midiNote));
                motor2stop = myNote.stop+motor1timer.read();
                m2e = 1;
                holdNotes = 0; 
                holdStart = 0;
                holdFinish = 0;
            } else if(motor3stop < motor1timer.read()) {
                t3.attach(&flip3, .5/midi2freq(myNote.midiNote));
                motor3stop = myNote.stop+motor1timer.read();
                m3e = 1;
                holdNotes = 0; 
                holdStart = 0;
                holdFinish = 0;
            } else {
                holdNotes = 0; 
                holdStart = 0;
                holdFinish = 0;
                }
    } //We have now finished assigning the note to be played
    led1 = !led1;      
    
    
    } //End of while loop for playing    
    motor1stop = 0;
    motor2stop = 0;
    motor3stop = 0;
      
   
}