Adafruit fingerprint code explanation

Projects Programming
10

a little more pondering... If the intent of the code was to pull out the data from 2 packets, then it reduces to this

  // filtering only the data packets
  int uindx = 9, index = 0;
  memcpy(fingerTemplate + index, bytesReceived + uindx, 256);   // first 256 bytes
  uindx += 256;       // skip data
  uindx += 2;         // skip checksum
  uindx = index + 9;  // skip next header
  index += 256;       // advance pointer
  memcpy(fingerTemplate + index, bytesReceived + uindx, 256);   // second 256 bytes