File content as of revision 5:5ab7aea7322d:

#include "mbed.h"
#include "led.h"
#include "buzzer.h"

Serial pc(USBTX, USBRX);
LED led1(D2);
LED led2(D3);
LED led3(D4);
Beep buzzer(D5);
Timer debounce;
InterruptIn tipka(D6);
int x=0;
int i=0;
int j=0;
int k=0;

//frekvencija nota
float a4=440.00;
float b3=246.94;
float b4=493.88;
float c4=261.63;
float c5=523.25;
float c5s=554.40;
float d4=293.66;
float d5=587.33;
float e4=329.63;
float e5=659.25;
float f4=349.23;
float f4s=370.00;
float f5=698.46;
float g4=392.00;
float g4s=415.30;
float g5=783.99;
 
//Trajanje tona
float t1=16;
float t2=8;
float t3=4;
float t4=2;
float t5=1;

//Melodija Jingle Bells
float jinglebells_freq[26] = {e5,e5,e5,e5,e5,e5,e5,g5,c5,d5,e5,f5,f5,f5,f5,f5,e5,e5,e5,e5,e5,d5,d5,e5,d5,g5};
float jinglebells_tempo[26] = {t2,t2,t3,t2,t2,t3,t2,t2,t2,t2,t4,t2,t2,t2,t2,t2,t2,t2,t1,t1,t2,t2,t2,t2,t3,t3,};

//Melodija Santa Claus is coming to town
float santaclaus_freq[28] = {g4,e4,f4,g4,g4,g4,a4,b4,c5,c5,c5,e4,f4,g4,g4,g4,a4,g4,f4,f4,e4,g4,c4,e4,d4,f4,b3,c4};
float santaclaus_tempo[28] = {t2,t2,t2,t3,t3,t3,t2,t2,t3,t3,t3,t2,t2,t3,t3,t3,t2,t2,t3,t4,t3,t3,t3,t3,t3,t4,t3,t5};

//Melodija We wish you a merry Christmas
float wewish_freq[30] = {e4,a4,a4,b4,a4,g4s,f4s,f4s,f4s,b4,b4,c5s,b4,a4,g4s,e4,e4,c5s,c5s,d5,c5s,b4,a4,f4s,e4,e4,f4s,b4,g4s,a4};
float wewish_tempo[30] = {t3,t3,t2,t2,t2,t2,t3,t3,t3,t3,t2,t2,t2,t2,t3,t3,t3,t3,t2,t2,t2,t2,t3,t3,t2,t2,t3,t3,t3,t4};

//Funkcija za melodiju "Jingle Bells"
void Melodija1() 
{ 
        for(i=0; i<26; i++) {
            buzzer.beep(jinglebells_freq[i], jinglebells_tempo[i]);
            led1.stanje(1);
            led2.stanje(0);
            wait(0.075);
            led1.stanje(0);
            led2.stanje(1);
            wait(1/jinglebells_tempo[i]);
            if(x==2){
            break;}
        }
}
//Funkcija za melodiju "Santa Claus is coming to town"
void Melodija2() 
{ 
        for(j=0; j<28; j++) {
            buzzer.beep(santaclaus_freq[j], santaclaus_tempo[j]);
            led2.stanje(1);
            led3.stanje(0);
            wait(0.075);
            led2.stanje(0);
            led3.stanje(1);
            wait(1/santaclaus_tempo[j]);
            if(x==3){
            break;}
        }
}
//Funkcija za melodiju "We wish you a merry Christmas"
void Melodija3() 
{ 
        for(k=0; k<30; k++) {
            buzzer.beep(wewish_freq[k], wewish_tempo[k]);
            led1.stanje(1);
            led3.stanje(0);
            wait(0.075);
            led1.stanje(0);
            led3.stanje(1);
            wait(1/wewish_tempo[k]);
            if(x==4){
            led1.stanje(0);
            led2.stanje(0);
            led3.stanje(0);
            buzzer.beep(500, 0.05);
            break;}
        }
}       
void TipkaStisnuta()
{
    if(debounce.read_ms()>200) {
        x++;
    }
    debounce.reset();
}



int main()
{//Postavljanje početnog stanja LED-ica
    led1.stanje(0);
    led2.stanje(0);
    led3.stanje(0);
    debounce.start();
    tipka.rise(&TipkaStisnuta);
    //While petlja
    while (true) {
                if(x==1){
                Melodija1();
                }
           else{
                if(x==2){
                Melodija2();
                }
                if(x==3){
                Melodija3();
                }
                if(x==4){
                x=0;
                }
            }
        }
}