// starts the event listener that knows whenever data is available to be read
// pre: an open serial port
// post: an event listener for the serial port that knows when data is recieved
public void initListener() {
try {
serialPort.addEventListener(this);
serialPort.notifyOnDataAvailable(true);
} catch (TooManyListenersException e) {
logText = "Too many listeners. (" + e.toString() + ")";
System.out.println(logText + "\n");
}
}
