Parsing data integer plus letter

Projects Programming
6

I cant make it work...

Maybe something Im not taking into account. Im sending via serial "5 s" or "5 f".

Does data is transfered in ASCII ?

So, in Parse the number is coverted into an integer but wount the letter be coverted too?

Sorry for my lack of knoledge. Im not a programmer im trying to build a controller for a synth

Can you spot the mistake?

unsigned long  s = 0x006600;
unsigned long  f = 0x000000; 
char color;
int a ;

/////////



void parseData() {

      char * strtokIndx; 

      strtokIndx = strtok(tempChars," ");     
    
       a = atoi(strtokIndx);     

       
      strtokIndx = strtok(NULL, " ");
   
    
      switch( strtokIndx[1] )
      {
         case 's' :
      {
         color = s;
        break;
          }
        case 'f' :
      {
         color = f;
        break;
          }
        default :
      {
         color = f;
        break;
        }
      }
 
 trellis.setPixelColor(a, color);