code: public void identifyNode(int nodeId) throws SerialInterfaceException {
  		SerialMessage newMessage = new SerialMessage(nodeId, SerialMessage.SerialMessageClass.IdentifyNode, SerialMessage.SerialMessageType.Request, SerialMessage.SerialMessageClass.IdentifyNode, SerialMessage.SerialMessagePriority.High);
      	byte[] newPayload = { (byte) nodeId };
      	newMessage.setMessagePayload(newPayload);
      	this.enqueue(newMessage);
  	}
docs: Send Identify Node message to the controller.
  @param nodeId the nodeId of the node to identify
  @throws SerialInterfaceException when timing out or getting an invalid response.