public class Program
{
    private static TinyGPSPlus _gps;

    public static void Main()
    {
        Debug.WriteLine($"devMobile.IoT.RAK.Wisblock.Max7Q starting TinyGPS {TinyGPSPlus.LibraryVersion}");

        Configuration.SetPinFunction(Gpio.IO21, DeviceFunction.COM2_TX);
        Configuration.SetPinFunction(Gpio.IO19, DeviceFunction.COM2_RX);

        _gps = new TinyGPSPlus();

        // UART1 with default Max7Q baudrate
        SerialPort serialPort = new SerialPort("COM2", 9600);

        serialPort.DataReceived += SerialDevice_DataReceived;
        serialPort.Open();
        serialPort.WatchChar = '\n';

         // // Enable the with GPS 3V3_S/RESET_GPS - IO2 - GPIO27
        GpioController gpioController = new GpioController();

        GpioPin Gps3V3 = gpioController.OpenPin(Gpio.IO27, PinMode.Output);
        Gps3V3.Write(PinValue.High);

        Debug.WriteLine("Waiting...");

        Thread.Sleep(Timeout.Infinite);
    }

    private static void SerialDevice_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
        // we only care if got EoL character
        if (e.EventType != SerialData.WatchChar)
        {
            return;
        }

        SerialPort serialDevice = (SerialPort)sender;

        string sentence = serialDevice.ReadExisting();

        if (_gps.Encode(sentence))
        {
            if (_gps.Date.IsValid)
            {
                Debug.Write($"{_gps.Date.Year}-{_gps.Date.Month:D2}-{_gps.Date.Day:D2} ");
            }

            if (_gps.Time.IsValid)
            {
                Debug.Write($"{_gps.Time.Hour:D2}:{_gps.Time.Minute:D2}:{_gps.Time.Second:D2}.{_gps.Time.Centisecond:D2} ");
            }

            if (_gps.Location.IsValid)
            {
                Debug.Write($"Lat:{_gps.Location.Latitude.Degrees:F5}° Lon:{_gps.Location.Longitude.Degrees:F5}° ");
            }

            if (_gps.Altitude.IsValid)
            {
                Debug.Write($"Alt:{_gps.Altitude.Meters:F1}M");
            }

            if (_gps.Date.IsValid || _gps.Time.IsValid || _gps.Location.IsValid || _gps.Altitude.IsValid)
            {
                Debug.WriteLine("");
            }
        }
    }
}