File content as of revision 0:c3549f40bdba:

#include "mbed.h"

//------------------------------------
// Hyperterminal configuration
// 9600 bauds, 8-bit data, no parity
//------------------------------------

Serial bt(D8, D2);
AnalogIn analog_value(A1);
BusOut segment(D3,D4,D5,D7);

int main()
{
    uint8_t state_menu=0;
    uint8_t state_show=0;
    uint8_t state_exit =0;
    uint8_t data;

    //myled = 0;
    bt.readable();
    bt.printf("ASevenZ");
    while(1) {
        if(state_show == 0) {
            bt.printf("************\n");
            bt.printf("   Menu   \n");
            bt.printf("************\n");
            bt.printf("1.Segment Function\n");
            bt.printf("2.Read VR\n");
            state_show =1;
            }
        if(bt.readable()) {
            data = bt.getc();
            bt.printf("\n");
            state_show =0;
            state_exit =0;

            switch(data) {
                case '1':
                    do {
                        if(bt.readable()) {
                            data = bt.getc();
                            if (data=='s'){
                                segment = 0;
                                state_exit =1;
                                break;
                            }
                            segment = data;
                            bt.printf("data: %d\n", data);
                            state_menu = 0;                        
                        }
                    }
                while(state_exit == 0);
                bt.printf("break\n");
                break;
            
                case '2':
                    do {
                        if(bt.readable()) {
                            data = bt.getc();
                            if (data=='s'){
                                bt.printf("\n");
                                state_exit =1;
                                break;
                            }
                        }
                        float VR = 0;
                        VR = analog_value.read();
                        VR = VR * 3.3f;
                        bt.printf("VR: %.2f \n",VR);
                        }
                while(state_exit ==0);
                bt.printf("\n");
                break;
    
                default:
                    bt.printf("plz select 1 or 2 \n");
                    bt.printf("\n");
                    break;
            }
        }
    }
}