File content as of revision 0:7d2d296b12e6:

#include "mbed.h"
 
// Read temperature from LM75BD
Serial pc(USBTX,USBRX);
I2C i2c(PB_9, PB_8);
AnalogIn V_adc(PB_1);

const int addr = 0xC8;
int i0=1,i1=0,i2=0,i3=0,i4=0,i5=0,i6=0,i7=0,i8=0,i9=0;
float Vr_adc;

DigitalIn  H1(PA_15);
DigitalIn  H2(PB_3);
DigitalIn  H3(PB_10);
unsigned short  U,V,W;
 
int main() {
     pc.baud(128000);
    char cmd[2];
        cmd[0] = 0x0;
        cmd[1] = 0x65;
       
        i2c.write(addr,cmd, 2);
       
        cmd[0] = 0x1;
        cmd[1] = 0x80;
        
        i2c.write(addr,cmd, 2);
        
        while(1){
            cmd[0] = 0x1;
            cmd[1] = 0x80;
            i2c.write(addr,cmd, 2);
            
             Vr_adc=V_adc.read();
        if((Vr_adc>0.05f)&&(Vr_adc<=0.1f)&&(i0==1)){
              cmd[0] = 0x0;
              cmd[1] = 0x25;  //0.72V
              i0=0;
              i1=1;
              i2c.write(addr,cmd, 2);
              }
        if((Vr_adc>0.1f)&&(Vr_adc<=0.2f)&&(i1==1)){
              cmd[0] = 0x0;
              cmd[1] = 0x35;  //1.04V
              i0=1;
              i1=0;
              i2=1;
              i2c.write(addr,cmd, 2);
              }
        if((Vr_adc>0.2f)&&(Vr_adc<=0.3f)&&(i2==1)){
              cmd[0] = 0x0;
              cmd[1] = 0x4D;  //1.53V
              i1=1;
              i2=0;
              i3=1;
              i2c.write(addr,cmd, 2);
              }
       if((Vr_adc>0.3f)&&(Vr_adc<=0.4f)&&(i3==1)){
              cmd[0] = 0x0;
              cmd[1] = 0x65;  //2.01V
              i1=1;
              i2=1;
              i3=0;
              i4=1;
              i2c.write(addr,cmd, 2);
              }
        if((Vr_adc>0.4f)&&(Vr_adc<=0.5f)&&(i4==1)){
              cmd[0] = 0x0;
              cmd[1] = 0x7D;  //2.48V
              i1=1;
              i2=1;
              i3=1;
              i4=0;
              i5=1;
              i2c.write(addr,cmd, 2);
              }
       if((Vr_adc>0.5f)&&(Vr_adc<=0.6f)&&(i5==1)){
              cmd[0] = 0x0;
              cmd[1] = 0x99;  //3.05V
              i1=1;
              i2=1;
              i3=1;
              i4=1;
              i5=0;
              i6=1;
              i2c.write(addr,cmd, 2);
              }   
       if((Vr_adc>0.6f)&&(Vr_adc<=0.7f)&&(i6==1)){
              cmd[0] = 0x0;
              cmd[1] = 0xB1;  //3.53V
              i1=1;
              i2=1;
              i3=1;
              i4=1;
              i5=1;
              i6=0;
              i7=1;
              i2c.write(addr,cmd, 2);
              }
      if((Vr_adc>0.7f)&&(Vr_adc<=0.8f)&&(i7==1)){
              cmd[0] = 0x0;
              cmd[1] = 0xC9;  //4.02V
              i1=1;
              i2=1;
              i3=1;
              i4=1;
              i5=1;
              i6=1;
              i7=0;
              i8=1;
              i2c.write(addr,cmd, 2);
              }   
      if((Vr_adc>0.8f)&&(i8==1)){
              cmd[0] = 0x0;
              cmd[1] = 0xE1;  //4.50V
              i1=1;
              i2=1;
              i3=1;
              i4=1;
              i5=1;
              i6=1;
              i7=1;
              i8=0;  
              i2c.write(addr,cmd, 2);
              } 
              
              U=H1; V=H2; W=H3;
              pc.printf("%d,%d,%d \r" ,U,V,W); 
            }
 
    
}