File content as of revision 0:b4c98e0b828d:

#include "mbed.h"
#include "rtos.h"
#include "Keypad.h"
#include "eeprom.h"
#include "stdlib.h"

//EEPROM memory(I2C_SDA,I2C_SCL,0);
Serial PC(D1, D0);
 // Define your own keypad values
 char Keytable[] = { '1', '2', '3', 'A',   // r0
                     '4', '5', '6', 'B',   // r1
                     '7', '8', '9', 'C',   // r2
                     '*', '0', '#', 'D'    // r3
                   };
                  // c0   c1   c2   c3
 
 uint32_t Index;
 uint32_t oldIndex;
 string arraysong[4][5] ={{"1A", "2A", "3A","4A", "5A"},
                          {"1B", "2B", "3B","4B", "5B"},
                          {"1C", "2C", "3C","4C", "5C"},
                          {"1D", "2D", "3D","4D", "5D"},}; //keep name's songs to random
                          
 char like; // if user likes, it send "l" /dislikes send "d" / wants to pass send "o"
 
 uint32_t cbAfterInput(uint32_t index) {
     Index = index;
     return 0;
 }
 int randomja();
 int numra; // a number gets from randomja()
 
 int main() {
                 // r0   r1   r2   r3   c0   c1   c2   c3
     Keypad keypad(A5, A4, D2,D3, D4, D5, D6, D7);
     keypad.attach(&cbAfterInput);
     keypad.start();  // energize the keypad via c0-c3
 
     while (1) {
         __wfi();
         //printf("Interrupted\r\n");
         //PC.printf("Index:%d\n",Index);
         //PC.printf("oldIndex:%d\n",oldIndex);
         //wait_ms(1000);
         
       while (oldIndex != Index){           
           PC.printf("Index:%d => Key:%c\r\n", Index, Keytable[Index]);
           if (Index == 4){
             numra = rand()%5;
             printf("Jibinarak4 %d\n",numra);
             printf("song is %s\n",arraysong[Index-4][numra]);
          /*   memory.write(1,Index,1);
             wait_ms(1);
             memory.write(2,arraysong,100);
             wait_ms(1);             
         */    
             Index =0; numra = 0; 
             oldIndex = Index; 
             }
           else if (Index == 5){
             numra = rand()%5;
             printf("Jibinarak5 %d\n",numra);
             printf("song is %s\n",arraysong[Index-4][numra]);
          /*   memory.write(3,Index,1);
             wait_ms(1);
             memory.write(4,arraysong,100);
             wait_ms(1);
           */
             Index =0; numra = 0;   
             oldIndex = Index; 
             }
           else if (Index == 6){
             numra = rand()%5;
             printf("Jibinarak6 %d\n",numra);
             PC.printf("song is %s\n",arraysong[Index-4][numra]);
           /*  memory.write(5,Index,1);
             wait_ms(1);
             memory.write(6,arraysong,100);
             wait_ms(1);
           */
             Index =0; numra = 0;   
             oldIndex = Index; 
             }
           else if (Index == 7){
             numra = rand()%5;
             printf("Jibinarak7 %d\n",numra);
             PC.printf("song is %s\n",arraysong[Index-4][numra]);
           /*  memory.write(7,Index,1);
             wait_ms(1);
             memory.write(8,arraysong,100);
             wait_ms(1);
           */  
             Index =0; numra = 0;   
             oldIndex = Index; 
             }
           else if (Index == 8){
             like = 'l';
             printf("like : %c\n",like);
             
           /*  memory.write(9,Index,1);
             wait_ms(1);
             memory.write(10,like,1);
             wait_ms(1);
           */  oldIndex = Index; 
             }
           else if (Index == 9){
             like = 'd';
             printf("like : %c\n",like);
    
           /*  memory.write(11,Index,1);
             wait_ms(1);
             memory.write(12,like,1);
             wait_ms(1);
          */   oldIndex = Index; 
             }
           else if (Index == 10){
             like = 'o';
             printf("like : %c\n",like);
             
          /*   memory.write(13,Index,1);
             wait_ms(1);
             memory.write(14,like,1);
             wait_ms(1);
           */  oldIndex = Index; 
             }
           else{oldIndex = Index;}  
         }
     }
     
 }