File content as of revision 2:35d1143053d3:

#include "mbed.h"
#include "m3pi_ng.h"


m3pi m3pi;

DigitalOut mbed_led[] = {(LED1), (LED2),(LED3), (LED4)};
DigitalOut m3pi_led[] = {(p13), (p14), (p15), (p16), (p17), (p18), (p19), (p20)};
DigitalIn m3pi_pb(p21);
Timer t1;
Serial btbee(p28, p27); // tx rx
DigitalOut btbee_reset(p26);  // 0 resets the device

//Serial btbee(p27, p28); // tx rx

int main()
{
    // initialization stuff ////////////////////////////////////////////////////////////////////////////////////////////////////
    m3pi.locate(0,1);
    btbee_reset=1;  // else it keeps resetting
    for (int i = 0; i <4; i++) {
        mbed_led[i] = 0;
    }
    for (int i = 0; i <8; i++) {
        m3pi_led[i]=0;
    }
    m3pi_pb.mode(PullUp); // expected would be 1 when pb is pressed, 0 when not, opposite is the case
    //btbee.baud(38400);  // this is BtBee default for AT commands
    //btbee.baud(9600);  // this is BtBee default for regular commands
    //btbee.format();  // the default should be fine
    // end initialization stuff ////////////////////////////////////////////////////////////////////////////////////////////////    


    /*  THIS IS NOT DOCUMENTED??? Where does the m3pi::printf function come from? m3pi is a child of Stream so it must be from there, probably defined using the m3pi::print function...
    m3pi.locate(0,1);
    m3pi.printf("Num %d",123456789);
    */
    //t1.start();

    // V=volume max is 15::O5=octave5::G16=G16th note::R24=rest24th note...a rest is needed between any two note that are the same
    //char dixie[]= {'V','1','5','O','5','G','1','6','E','1','6','C','8','R','2','4','C','8','R','2','4','C','1','6','D','1','6','E','1','6','F','1','6','G','8','R','2','4','G','8','R','2','4','G','8','E','1','6'};
    //the number of characters in the array
    //int len=49;
    //m3pi.playtune(dixie,len);

    /*
    t1.stop();
    int t=t1.read_ms();
    t1.reset();
    m3pi.locate(0,0); //cursor on the LCD; x 0-7 y 0-1
    m3pi.printf("%d",t);
    */

    /*
    // tests for the pushbutton
    while (true){
    m3pi_led[0]=!m3pi_pb;
    }

    while(m3pi_pb){
    m3pi_led[5]=!m3pi_led[5];
    wait(0.1);
    }
    */


    // test what happens if i try to read from serial and nothing is there
    // result: it blocks and waits for input
    /*
    char c = m3pi.getc();
    m3pi.locate(0,1);
    m3pi.printf("%c",c);
    mbed_led[0]=1;
    */

    ///*
    int rawsens[5];
    int sens1;
    int t_sig1;
    float fl;
    while(true) {
        t1.start();
        m3pi.raw_sensor(rawsens);      
        t_sig1=t1.read_ms();
        //wait(0.1);
        m3pi.cls();
        m3pi.locate(0,1);
        m3pi.printf("%d",rawsens[0]);

        m3pi.locate(0,0);
        m3pi.printf("%d",t1.read_ms());
        m3pi.locate(5,0);
        m3pi.printf("%d",t_sig1);
        t1.stop();
        t1.reset();
        m3pi_led[0]=!m3pi_led[0];
        }
    //*/

    /*
    int ii=1;
    int pos=0;
    while (true) {
        m3pi_led[0]=1;
        m3pi_led[1]=0;
        if (btbee.writeable()) {
            if (ii==6){btbee.printf("end\n");}
            else {btbee.printf("Sensor %d. : %d \n",ii,rawsens[ii-1]);}
            m3pi_led[0]=0;
            ii++;
            m3pi.locate(0,0);
            m3pi.printf("Sent %0.3d",ii);
        }

        while (btbee.readable()) {
            c = btbee.getc();
            m3pi.locate(pos,1);
            m3pi.print(&c,1);
            pos++;
            pos=pos%8;

        }

        wait(0.5);
    }
    */
}