public MainForm()
{
InitializeComponent();
m_Gps = new NmeaGps();
m_Gps.PositionReceived += new NmeaGps.PositionReceivedDelegate(m_Gps_PositionReceived);
m_Logger = new DataLogger("GpsLog.txt", m_Gps);
m_Logger.Logging = true;
}
public DataLogger(string filename, NmeaGps gps)
{
m_Filename = filename;
m_Gps = gps;
// Write Header line
WriteLine(string.Format("# GPS Logger started at {0}", DateTime.Now.ToString()));
WriteLine("");
WriteLine("Timestamp, Lat, Long, Speed, Bearing");
// Listen for Frame Received
m_Gps.PositionReceived += new NmeaGps.PositionReceivedDelegate(m_Gps_PositionReceived);
}
public static void Main()
{
#if SD_ENABLED
// If your Netduino can't execute the next line of code, make sure you got at least firmware 4.1.1 beta 1
// See also: http://forums.netduino.com/index.php?/topic/1592-netduino-firmware-v411-beta-1/
StorageDevice.MountSD("SD", SPI_Devices.SPI1, Pins.GPIO_PIN_D10);
// Determines the filename
string filename = "";
int index = 0;
do
{
filename = @"\SD\LOGGER" + Tools.ZeroFill(index, 2) + ".CSV";
++index;
}while (File.Exists(filename));
// Starts writing to the file
FileStream stream = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write);
StreamWriter writer = new StreamWriter(stream);
// Writes file headers
writer.WriteLine("ticks,datetime,fix,latitude,longitude,altitude,satellites,kmh");
#endif
// The GPS unit is connected to COM2
NmeaGps gps = new NmeaGps("COM2");
// Lets power on the GPS unit (active: LOW)
OutputPort gps_enable = new OutputPort(Pins.GPIO_PIN_D4, false);
// LEDs are connected to pins 5 and 6
OutputPort led1 = new OutputPort(Pins.GPIO_PIN_D5, false);
OutputPort led2 = new OutputPort(Pins.GPIO_PIN_D6, false);
// Starts the GPS unit
gps.Start();
// Keeps on looping
while (true)
{
// LED1 status ON
led1.Write(true);
// Builds the output
string output = "";
output += DateTime.Now.Ticks.ToString() + ", ";
output += gps.GPSTime.ToString() + ", ";
if (!gps.Fix)
{
output += "0, 0, 0, 0, 0, 0";
}
else
{
output += "1, ";
output += gps.Latitude.ToString() + ", ";
output += gps.Longitude.ToString() + ", ";
output += gps.Altitude.ToString() + ", ";
output += gps.Satellites.ToString() + ", ";
output += gps.Kmh.ToString();
}
// Prints the output to the debugger
Debug.Print(output);
#if SD_ENABLED
// Writes the output to the SD buffer
writer.WriteLine(output);
#endif
// LED1 status OFF, LED1 status ON
led1.Write(false);
led2.Write(true);
#if SD_ENABLED
// Flushes the buffers to the SD card
writer.Flush();
stream.Flush();
#endif
// LED2 status OFF
led2.Write(false);
// Sleeps for a second
Thread.Sleep(1000);
}
}
