private async Task <string> GetVIN()
{
var result = await SendAndReceive("0902\r");
if (result.StartsWith("49"))
{
while (!result.Contains("49 02 05"))
{
string tmp = await ReceiveAsync();
result += tmp;
}
}
return(ObdExtension.ParseVINMsg(result));
}
public Dictionary <string, string> Read()
{
var ret = new Dictionary <string, string>();
string s;
if (simulatormode)
{
s = "SIMULATORANDROID1";
ret.Add("vin", s);
foreach (var cmd in piDs.Keys)
{
var key = piDs[cmd];
s = ObdExtension.GetEmulatorValue(cmd);
ret.Add(key, s);
}
return(ret);
}
if (!simulatormode && bluetoothSocket == null)
{
//if there is no connection
return(null);
}
lock (_lock)
{
foreach (var key in data.Keys)
{
ret.Add(key, data[key]);
}
foreach (var v in piDs.Values)
{
data[v] = DefValue;
}
}
return(ret);
}
public async Task <bool> Init(bool simulatormode = false)
{
running = true;
//initialize _data
data = new Dictionary <string, string> {
{ "vin", DefValue }
};
//VIN
piDs = ObdExtension.GetPIDs();
foreach (var v in piDs.Values)
{
data.Add(v, DefValue);
}
this.simulatormode = simulatormode;
if (simulatormode)
{
PollObd();
return(true);
}
bool isObdReaderAvailable = false;
foreach (var netInterface in NetworkInterface.GetAllNetworkInterfaces())
{
if (netInterface.NetworkInterfaceType == NetworkInterfaceType.Wireless80211 ||
netInterface.NetworkInterfaceType == NetworkInterfaceType.Ethernet)
{
foreach (var addrInfo in netInterface.GetIPProperties().UnicastAddresses)
{
var ipaddr = addrInfo.Address;
if (ipaddr.ToString().StartsWith("192.168.0"))
{
isObdReaderAvailable = true;
break;
}
}
}
}
if (!isObdReaderAvailable)
{
socket = null;
running = false;
connected = false;
return(false);
}
if (!ConnectSocket())
{
socket = null;
running = false;
connected = false;
return(false);
}
if (connected)
{
//initialize the device
string s;
s = await SendAndReceive("ATZ\r");
s = await SendAndReceive("ATE0\r");
s = await SendAndReceive("ATL1\r");
s = await SendAndReceive("ATSP00\r");
PollObd();
return(true);
}
else
{
return(false);
}
}
private async Task <string> RunCmd(string cmd)
{
var result = await SendAndReceive(cmd + "\r");
return(ObdExtension.ParseObd01Msg(result));
}
private async void PollObd()
{
try
{
string s;
if (simulatormode)
{
s = "SIMULATORIPHONE12";
}
else
{
s = await GetVIN();
}
lock (_lock)
{
data["vin"] = s;
}
while (true)
{
foreach (var cmd in piDs.Keys)
{
var key = piDs[cmd];
if (simulatormode)
{
s = ObdExtension.GetEmulatorValue(cmd);
}
else
{
s = await RunCmd(cmd);
}
if (s != "ERROR")
{
lock (_lock)
{
data[key] = s;
}
}
if (!running)
{
return;
}
}
await Task.Delay(Interval);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
running = false;
if (stream != null)
{
stream.Close();
stream = null;
}
if (socket != null)
{
socket.Close();
socket = null;
}
}
}
public async Task <bool> Init(bool simulatormode = false)
{
running = true;
//initialize _data
data = new Dictionary <string, string> {
{ "vin", DefValue }
};
//VIN
piDs = ObdExtension.GetPIDs();
foreach (var v in piDs.Values)
{
data.Add(v, DefValue);
}
this.simulatormode = simulatormode;
if (simulatormode)
{
return(true);
}
bluetoothAdapter = BluetoothAdapter.DefaultAdapter;
if (bluetoothAdapter == null)
{
System.Diagnostics.Debug.WriteLine("Bluetooth is not available");
return(false);
}
try
{
var ba = bluetoothAdapter.BondedDevices;
foreach (var bd in ba)
{
if (bd.Name.ToLower().Contains("obd"))
{
bluetoothDevice = bd;
}
}
if (bluetoothDevice == null)
{
return(false);
}
bluetoothSocket = bluetoothDevice.CreateRfcommSocketToServiceRecord(SppUuid);
await bluetoothSocket.ConnectAsync();
connected = true;
}
catch (Java.IO.IOException ex)
{
// Close the socket
try
{
connected = false;
bluetoothSocket.Close();
}
catch (Java.IO.IOException)
{
}
catch (Exception)
{
}
return(false);
}
catch (Exception ex)
{
}
if (connected)
{
reader = bluetoothSocket.InputStream;
writer = bluetoothSocket.OutputStream;
string s;
s = await SendAndReceive("ATZ\r");
s = await SendAndReceive("ATE0\r");
s = await SendAndReceive("ATL1\r");
s = await SendAndReceive("ATSP00\r");
PollObd();
return(true);
}
else
{
return(false);
}
}