File content as of revision 0:bc396bb049ae:

#include "mbed.h"
Serial pc(D8, D2);

DigitalOut gsled1(D3);
DigitalOut gsled2(D4);
DigitalOut gsled3(D5);
DigitalOut gsled4(D6);

AnalogIn analog_value(A1);//อานค่าAnalogจากขาA1
uint8_t state_show=0;
uint8_t data;
uint8_t Bluet;
float formvolume;//รับค่าจากR
float mVolt;//รับค่าที่แปลงแล้วหน่วยmV
float Volt;
int x=0;

void Number0(){//float Number
    gsled1 = 0;
    gsled2 = 0;
    gsled3 = 0;
    gsled4 = 0;
    }
void Number1(){// Number
    gsled1 = 0;
    gsled2 = 0;
    gsled3 = 0;
    gsled4 = 1;
    }
void Number2(){
    gsled1 = 0;
    gsled2 = 0;
    gsled3 = 1;
    gsled4 = 0;
    }
void Number3(){
    gsled1 = 0;
    gsled2 = 0;
    gsled3 = 1;
    gsled4 = 1;
    }
void Number4(){
    gsled1 = 0;
    gsled2 = 1;
    gsled3 = 0;
    gsled4 = 0;
    }
void Number5(){
    gsled1 = 0;
    gsled2 = 1;
    gsled3 = 0;
    gsled4 = 1;
    }
void Number6(){
    gsled1 = 0;
    gsled2 = 1;
    gsled3 = 1;
    gsled4 = 0;
    }
void Number7(){
    gsled1 = 0;
    gsled2 = 1;
    gsled3 = 1;
    gsled4 = 1;
    }
void Number8(){
    gsled1 = 1;
    gsled2 = 0;
    gsled3 = 0;
    gsled4 = 0;
    }
void Number9(){
    gsled1 = 1;
    gsled2 = 0;
    gsled3 = 0;
    gsled4 = 1;
    }
void segmentfunction(){
    if (Bluet==0){
        Number0();
        }
    else if (Bluet==1){
        Number1();
        }
    else if (Bluet==2){
        Number2();
        }
    else if (Bluet==3){
        Number3();
        }
    else if (Bluet==4){
        Number4();
        }
    else if (Bluet==5){
        Number5();
        }
    else if (Bluet==6){
        Number6();
        }
    else if (Bluet==7){
        Number7();
        }
    else if (Bluet==8){
        Number8();
        }
    else if (Bluet==9){
        Number9();
        }
}
void showmenu(){
            pc.printf("************\n");
            pc.printf("   MENU   \n");
            pc.printf("************\n");
            pc.printf("1.PLAY SEGMENT \n");
            pc.printf("2.READ VR\n");
            state_show =1;
    }
int main()
{
  
    while(1) {
            
            if (state_show == 0){
                showmenu();
                pc.readable();
                data = pc.getc();
                x=0;
                if (data=='1'){
                                pc.printf("PLAY SEGMENT \n");
                                pc.readable();
                                data = pc.getc();
                                while(x==0){
                                    while (data=='0'){
                                        pc.printf("-->0<-- \n\n");
                                        Bluet=0;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='1'){
                                        pc.printf("-->1<-- \n\n");
                                        Bluet=1;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='2'){
                                        pc.printf("-->2<-- \n\n");
                                        Bluet=2;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='3'){
                                        pc.printf("-->3<-- \n\n");
                                        Bluet=3;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='4'){
                                        pc.printf("-->4<-- \n\n");
                                        Bluet=4;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='5'){
                                        pc.printf("-->5<-- \n\n");
                                        Bluet=5;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='6'){
                                        pc.printf("-->6<-- \n\n");
                                        Bluet=6;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='7'){
                                        pc.printf("-->7<-- \n\n");
                                        Bluet=7;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='8'){
                                        pc.printf("-->8<-- \n\n");
                                        Bluet=8;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='9'){
                                        pc.printf("-->9<-- \n\n");
                                        Bluet=9;
                                        segmentfunction();
                                        data = pc.getc();
                                    }
                                    while (data=='x'){
                                        x=1;
                                        state_show = 0;
                                        break;
                                    }
                                          
                }
                }
                
                if (data=='2'){
                            while(x==0){
                                while(data=='2'){
                                    formvolume = analog_value.read();
                                    mVolt = formvolume * 5000;
                                    Volt = mVolt/1000;
                                    pc.printf("VRvalue %0.2f V\n",Volt);
                                    wait(0.2);
                                    if(pc.readable()){
                                          data = pc.getc();
                                          if(data == 'x'){
                                            x=1;
                                            state_show = 0;
                                            break;
                                        }
                                        }
                                }
                              
                            }
                            

                }
        }
    }
        
        
        
}