Processing to Arduino to Neopixels communication problems

Processing Electronics (Arduino, etc.)
6

ok, I figured that one out. The trick is to after receiving on arduino divide the string into sections by inserting dots (or something else), and than to use “toInt()” on these sub-strings to convert them from bytes to ints.

void Send_fromP() {

  // Find indexes of '.' and save to array
  int sect[15];

  sect[0] = fromProc.indexOf('.'); //first one

  for (int s = 1; s < 15; s++)  { //all others
    int sTemp = s - 1;
    sect[s] = fromProc.indexOf('.', sect[sTemp] + 1);
  }

  // Save what's between '.' to array of strings
  String len[15];

  len[0] = fromProc.substring(0, sect[0]); //first one

  for (int l = 1; l < 15; l++)  { //all others
    int lTemp = l - 1;
    len[l] = fromProc.substring((sect[lTemp] + 1), sect[l]); 
  }

  //Convert strings to Int values
  float br[15];

  for (int b = 0; b < 15; b++)  {
    br[b] = len[b].toInt();
  }

  //Send values to neopixels
  for (int i = 0; i < NUMPIXELS; i++)  {

      pixels.setPixelColor(i, pixels.Color(br[i], br[i], br[i]));
    
  }
}