File content as of revision 0:7bfcf6451577:

#include "mbed.h"
#include "LCD4884.h"

LCD4884 object;
AnalogIn analog(A0);
char b[10];
int state_menu=0;
int data=0;

void choose_menu(int dog)
{
    
    switch(dog) {
            case 1:
                float a=analog.read();
                if( a>0.3 && a<0.5){
                    //object.LCD_write_string(3,0,b, MENU_NORMAL);
                    object.LCD_clear();
                    object.LCD_write_string(0,1,"MENU", MENU_NORMAL);
                    object.LCD_write_string(0,2,"1.SET_TIME", MENU_HIGHLIGHT);
                    object.LCD_write_string(0,3,"2.FOOD_DATA", MENU_NORMAL);
                    object.LCD_write_string(0,4,"3.FOOD_TOTAL", MENU_NORMAL);
                    data++;
                }
            case 2:
                if( a>0.3 && a<0.5){
                    //object.LCD_write_string(3,0,b, MENU_NORMAL);
                    object.LCD_write_string(0,1,"MENU", MENU_NORMAL);
                    object.LCD_write_string(0,2,"1.SET_TIME", MENU_NORMAL);
                    object.LCD_write_string(0,3,"2.FOOD_DATA", MENU_HIGHLIGHT);
                    object.LCD_write_string(0,4,"3.FOOD_TOTAL", MENU_NORMAL);
                    data++;
                }
            case 3:
                if( a>0.3 && a<0.5){
                    //object.LCD_write_string(3,0,d, MENU_NORMAL);
                    object.LCD_write_string(0,1,"MENU", MENU_NORMAL);
                    object.LCD_write_string(0,2,"1.SET_TIME", MENU_NORMAL);
                    object.LCD_write_string(0,3,"2.FOOD_DATA", MENU_NORMAL);
                    object.LCD_write_string(0,4,"3.FOOD_TOTAL", MENU_HIGHLIGHT);
                    data=1;
                }
    }
}
int main()
{
    object.LCD_init();
    while(1) {
        if(state_menu == 0){
            float a=analog.read();
            sprintf(b,"%.01f",a);
            object.LCD_write_string(3,0,b, MENU_NORMAL);
            object.LCD_write_string(0,1,"MENU", MENU_NORMAL);
            object.LCD_write_string(0,2,"1.SET_TIME", MENU_NORMAL);
            object.LCD_write_string(0,3,"2.FOOD_DATA", MENU_NORMAL);
            object.LCD_write_string(0,4,"3.FOOD_TOTAL", MENU_NORMAL);
            if( a>0.3 && a<0.5){
                data=1;
                choose_menu(data);
            }

            
        }
        wait(0.1);
    }
}