private string GetFriendlyElmConnectionResultTypeName(ElmDriver.ElmConnectionResultType resultType)
{
switch (resultType)
{
case ElmDriver.ElmConnectionResultType.NoConnectionToElm:
return("No ELM connection");
case ElmDriver.ElmConnectionResultType.NoConnectionToObd:
return("No OBD connection");
default:
return("Connected");
}
}
/// <summary>
/// Attempts to connect to the ECU. If successful, will retrieve one time information from the ECU.
/// </summary>
public void Connect(ElmDriver.ElmObdProtocolType protocolType = ElmDriver.ElmObdProtocolType.Automatic, ElmDriver.ElmMeasuringUnitType measurementUnitType = ElmDriver.ElmMeasuringUnitType.English)
{
elm = new ElmDriver(serialPortName, protocolType, measurementUnitType);
ElmDriver.ElmConnectionResultType connectionResult = elm.Connect();
if (connectionResult == ElmDriver.ElmConnectionResultType.NoConnectionToElm)
{
throw new Exception("Failed to connect to the ELM327");
}
else if (connectionResult == ElmDriver.ElmConnectionResultType.NoConnectionToObd)
{
throw new Exception("Failed to connect to the vehicle's ECU");
}
else
{
connected = true;
// Get the currently used OBD protocol type
OBDProtocolType = GetFriendlyObdProtocolModeTypeName(elm.ProtocolType);
VehicleFuelType = GetFriendlyFuelTypeName(elm.ObdMode01.FuelType);
VIN = elm.ObdMode09.VehicleIdentificationNumber;
}
}
