// Create and connect to serial port
SerialPort serialPort = new SerialPort(); //Use an overload to pass in your settings
serialPort.Open();

// Pipe the serial port stream through a duplex pipe
IDuplexPipe duplexPipe = StreamConnection.GetDuplex(serialPort.BaseStream); // See note below

// Pass in the pipe to the communicator and start communicating!
ICommunicator<string> comm = new Communicator(duplexPipe);

// Send a ping to the modem
var initializeResult = await comm.InitializeAsync();
// Get battery status
var batteryStatus = await comm.GetBatteryStatusAsync();