Arduino Lighthack for Softkeys

Here a small code snippet for parsing string data, instead of the Pan/Tilt Update:

String data;

void parseData(OSCMessage& msg, int addressOffset) {
  char txt[128];
  int length = msg.getDataLength(0);
  msg.getString(0, txt, length);
  data = String(txt);
  displayStatus = true;
  }

The above code allocates a fixed-size buffer of exactly 128 bytes, and will therefore crash if trying to put more than 128 bytes into the buffer.
It doesn't matter what else is going on unless you can already guarantee that getString can never return more than 128 bytes.

Alternatively, you can find out the required size first and then allocate an appropriate buffer.

However, it's unlikely you'd ever want more than 33 bytes anyway, as the display can only show 32 characters (at once).
- Arduino doesn't have much RAM so there isn't much point in keeping more than you need :)

Another problem for the classic Arduino's like UNO is that the UART Ringbuffer (which is used for USB Connection with FTDI Chip) have only 64 bytes. Other boards like Leonardo have its own RAM (832 bytes) for USB.