void Initialize()
{
Console.WriteLine("Initialize hardware...");
display = new Ssd1309(Device.CreateI2cBus());
Console.WriteLine("Display created");
graphics = new GraphicsLibrary(display);
graphics.CurrentFont = new Font8x8();
Console.WriteLine("Graphics library created");
//COM4 - Pins D00 & D01 on the Meadow F7
port = Device.CreateSerialMessagePort(
Device.SerialPortNames.Com4,
suffixDelimiter: Encoding.ASCII.GetBytes("\r\n"),
preserveDelimiter: true,
9600);
Console.WriteLine("Serial port created");
port.MessageReceived += (object sender, SerialMessageData e) => {
nmea.ProcessNmeaMessage(e.GetMessageString(Encoding.ASCII));
};
nmea = new NmeaSentenceProcessor();
var ggaParser = new GgaDecoder();
ggaParser.PositionReceived += GgaParser_OnPositionReceived;
nmea.RegisterDecoder(ggaParser);
// open serial
port.Open();
}
/// <summary>
/// Main constructor
/// </summary>
/// <param name="p">Serial port to use for communication</param>
public ComCommunication(ISerialMessagePort p)
{
locker = new object();
port = p;
port.Open();
port.MessageReceived += Port_MessageReceived;
SendMessage("Waiting for connection...");
}
private void GgaParser_OnPositionReceived(object sender, Meadow.Peripherals.Sensors.Location.Gnss.GnssPositionInfo location)
{
port.Close();
graphics.Clear();
graphics.DrawText(0, 0, "Latitude:");
graphics.DrawText(0, 11, $"{location.Position.Latitude?.Degrees} {location.Position.Latitude?.Direction}");
graphics.DrawText(0, 22, "Longitude:");
graphics.DrawText(0, 33, $"{location.Position.Longitude?.Degrees} {location.Position.Longitude?.Direction}");
graphics.DrawText(0, 44, "Altitude:");
graphics.DrawText(0, 55, $"{location.Position.Altitude}m");
graphics.Show();
port.Open();
}
void Initialize()
{
Console.WriteLine("Initialize hardware...");
onboardLed = new RgbPwmLed(device: Device,
redPwmPin: Device.Pins.OnboardLedRed,
greenPwmPin: Device.Pins.OnboardLedGreen,
bluePwmPin: Device.Pins.OnboardLedBlue,
3.3f, 3.3f, 3.3f,
Meadow.Peripherals.Leds.IRgbLed.CommonType.CommonAnode);
bus = Device.CreateI2cBus();
display = new CharacterDisplay(bus, 39, 2, 16);
port = Device.CreateSerialMessagePort(Device.SerialPortNames.Com4, suffixDelimiter: new byte[] { 10 }, preserveDelimiter: true, 921600, 8, Parity.None, StopBits.One);
port.Open();
port.MessageReceived += Port_MessageReceived;
}
public void StartUpdating()
{
// open the serial connection
serialPort.Open();
Console.WriteLine("serial port opened.");
//==== setup commands
// get release and version
Console.WriteLine("Asking for release and version.");
this.serialPort.Write(Encoding.ASCII.GetBytes(Commands.PMTK_Q_RELEASE));
// get atntenna info
Console.WriteLine("Start output antenna info");
this.serialPort.Write(Encoding.ASCII.GetBytes(Commands.PGCMD_ANTENNA));
// turn on all data
Console.WriteLine("Turning on all data");
this.serialPort.Write(Encoding.ASCII.GetBytes(Commands.PMTK_SET_NMEA_OUTPUT_ALLDATA));
}
void Start()
{
Console.WriteLine("Starting.");
HeartBeat();
serialPort.Open();
}