/// <summary>
/// Opens the connection to an Arduino board
/// </summary>
public void OpenArduinoConnection()
{
WeatherDataItem item = new WeatherDataItem();
item.Date = DateTime.Now;
item.TemparatureCelsius = (float)5.5;
weatherDataItems.Add(item);
item = new WeatherDataItem();
item.Date = DateTime.Now;
item.TemparatureCelsius = (float)10;
weatherDataItems.Add(item);
item = new WeatherDataItem();
item.Date = DateTime.Now;
item.TemparatureCelsius = (float)11.3;
weatherDataItems.Add(item);
item = new WeatherDataItem();
item.Date = DateTime.Now;
item.TemparatureCelsius = (float)8.55;
weatherDataItems.Add(item);
if(!arduinoBoard.IsOpen)
{
arduinoBoard.DataReceived += arduinoBoard_DataReceived;
arduinoBoard.PortName = ConfigurationSettings.AppSettings["ArduinoPort"];
arduinoBoard.Open();
}
else
{
throw new InvalidOperationException("The Serial Port is already open!");
}
}
/// <summary>
/// Reads weather data from the arduinoBoard serial port
/// </summary>
void arduinoBoard_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
string data = arduinoBoard.ReadTo("\x03");//Read until the EOT code
//Split into 'date=temparature' formatted text
string[] dataArray = data.Split(new string[] {"\x02", "$" }, StringSplitOptions.RemoveEmptyEntries);
//Iterate through the splitted data and parse it into weather data items
//and add them to the list of received weather data.
foreach (string dataItem in dataArray.ToList())
{
WeatherDataItem weatherDataItem = new WeatherDataItem();
weatherDataItem.FromString(dataItem);
weatherDataItems.Add(weatherDataItem);
}
if(NewWeatherDataReceived != null)//If there is someone waiting for this event to be fired
{
NewWeatherDataReceived(this, new EventArgs()); //Fire the event, indicating that new WeatherData was added to the list.
}
}
