#include <stdio.h>
#include <string.h>

/* mass1_16p3.c */
/* Copyright (C) 2013 Joseph Rosevear */

/* This needs standard input from "cat /dev/ttyUSB0"
where a Hobby King Eco AC/DC charger is connected to /dev/ttyUSB0 on a
linux computer.

For example,

   cat /dev/ttyUSB0 | ./mass

*/

int main(int argc, char *argv[]) {

   int c, count, byte7, byte8, byte15, byte16;
   float float15, float16, volts;
   float float7, float8, mahs;

   count = 0;
   while ((c = getchar()) != EOF ) {

      if (c == '{') {
   
         count = 0;
      
      } else if (c != '{') {
   
         count++;
         
         switch(count) {
         
         /* byte 1 */
         case 1:
         
            printf("%d ", c-128 );
            break;
            
         /* byte 2 */
         case 2:
         
            printf("%d ", c-128 );
            break;
            
         /* byte 3 */
         case 3:
         
            printf("%d ", c-128 );
            break;
            
         /* byte 4 */
         case 4:
         
            printf("%d ", c-128 );
            break;
            
         /* byte 5 */
         case 5:

            printf("%d ", c-128 );
            break;
                  
         /* byte 6 */
         case 6:

            printf("%d ", c-128 );
            break;      

         /* Mahs = byte7*100 + byte8 */

         /* byte 7 */
         case 7:
      
            byte7 = c - 128;
            float7 = (float)byte7;
            break;
                     
         /* byte 8 */
         case 8:

            byte8 = c-128;
            float8 = (float)byte8;
            mahs = float7*100. + float8;
            printf("%5.0f ", mahs);
            break;
                  
         /* byte 9 */
         case 9:

            printf ("%d ", c-128 );
            break;
             
          /* Byte10 tells the (truncated) minutes. */

          /* byte 10 */
         case 10: 

            printf("%d ", c-128);
            break;
            
         /* byte 11 */
         case 11:

            printf("%d ", c-128 );          
            break;
            
         /* Byte12 tells the Amps*100.  I have corrected it here by dividing by 100. */

         /* byte 12 */
         case 12:
         
            printf("%1.2f ", (c-128)/100. );
            break;
                  
         /* byte 13 */
         case 13:

            printf("%d ", c-128 );
            break;
                     
         /* byte 14 */
         case 14:
         
            printf("%d ", c-128 );
            break;
                  
         /* Volts = byte15 + byte16/100. */

         /* byte 15 */
         case 15:
         
/*          printf("%d ", c-128 ); */
            byte15 = c - 128;
            float15 = (float)byte15;
            break;
         
         /* byte 16 */
         case 16:
         
            byte16 = c - 128;
            float16 = (float)byte16;
            volts = float15 + float16/100.;
            printf("%2.2f ", volts);
            break;

         /* byte 109 */
         case 109:
         
            printf("%d ", c);
            break;
        
         /* byte 110 */
         case 110:
         
            printf("%d\n", c);
            break;
            
         }      
      }
   }
   
   return(0);
}