OBD.NET

C#-Library to read/write data from/to a car through an ELM327-/STN1170-Adapter

Projects

• OBD.NET - OBD-II implementation in .NET 6/5 and .NET Framework 4.8
• ConsoleClient - Example client application using SerialConnection, running with .NET 6

Usage

• Add the OBD.NET package to project

public class Program { public static void Main(string[] args) { if (args.Length < 1) { Console.WriteLine("Parameter ComPort needed.");

        IEnumerable<string> availablePorts = SerialConnection.GetAvailablePorts();

        Console.WriteLine("\nAvailable ports:");

        foreach (string port in availablePorts)
        {
            Console.WriteLine(port);
        }

        return;
    }

    string comPort = args[0];

    using SerialConnection connection = new SerialConnection(comPort);
    using ELM327 dev = new ELM327(connection, new OBDConsoleLogger(OBDLogLevel.Debug));

    dev.SubscribeDataReceived<EngineRPM>((sender, data) => Console.WriteLine("EngineRPM: " + data.Data.Rpm));
    dev.SubscribeDataReceived<VehicleSpeed>((sender, data) => Console.WriteLine("VehicleSpeed: " + data.Data));

    dev.SubscribeDataReceived<IOBDData>((sender, data) => Console.WriteLine($"PID {data.Data.PID.ToHexString()}: {data.Data}"));

    dev.Initialize();
    dev.RequestData<FuelType>();

    for (int i = 0; i < 5; i++)
    {
        dev.RequestData<EngineRPM>();
        dev.RequestData<VehicleSpeed>();
        Thread.Sleep(1000);
    }

    Console.ReadLine();

    //Async example
    // MainAsync(comPort).Wait();

    //Console.ReadLine();
}

/// <summary>
/// Async example using new RequestDataAsync
/// </summary>
/// <param name="comPort">The COM port.</param>
/// <returns></returns>
public static async Task MainAsync(string comPort)
{
    using SerialConnection connection = new SerialConnection(comPort);
    using ELM327 dev = new ELM327(connection, new OBDConsoleLogger(OBDLogLevel.Debug));

    dev.Initialize();

    EngineRPM engineRpm = await dev.RequestDataAsync<EngineRPM>();
    Console.WriteLine("Data: " + engineRpm.Rpm);

    engineRpm = await dev.RequestDataAsync<EngineRPM>();
    Console.WriteLine("Data: " + engineRpm.Rpm);

    VehicleSpeed vehicleSpeed = await dev.RequestDataAsync<VehicleSpeed>();
    Console.WriteLine("Data: " + vehicleSpeed.Speed);

    engineRpm = await dev.RequestDataAsync<EngineRPM>();
    Console.WriteLine("Data: " + engineRpm.Rpm);
}

}