Metratec Device SDK

Metratec Devices SDK for .net 6.0 (core)

Install the library

This library also requires for the serial connection the System.IO.Ports package.

To add the required libraries, you can do this via the Visual Studio UI: Right-click on Dependencies->Add Project Reference->Browse and select the external MetratecDevices.dll. For the serial connection add the required package System.IO.Ports via the Visual Studio UI. Right-click on Dependencies->Manage NuGet Packages and locate and install the System.IO.Ports package.

This library uses the Microsoft Logging System, for which at least the Microsoft.Extensions.Logging.Abstraction package is necessary. Add this package as well.

Or you can alternatively edit your .csproj file:

<ItemGroup>
  <Reference Include="MetratecDevices, Version=3.4.0.0">
    <HintPath>path\to\MetratecDevices.dll</HintPath>
  </Reference>
  <!-- For serial connection -->
  <PackageReference Include="System.IO.Ports" Version="7.0.0" />
  <!-- For logging -->
  <PackageReference Include="Microsoft.Extensions.Logging.Abstraction" Version="7.0.0" />
</ItemGroup>

Usage

using MetraTecDevices;

namespace Tests
{
  class Program
  {
    static void Main(string[] args)
    {
      try
      {
        // Create a DeskID uhf device object
        DeskID_UHF_v2 deskid = new DeskID_UHF_v2("COM6");
        // add a reader status listener
        reader.StatusChanged += (s, e) => Console.WriteLine($"Reader status changed to {e.Message} ({e.Status})");
        // add an inventory listener
        reader.NewInventory += (s, e) =>
        {
            Console.WriteLine($"New inventory event! {e.Tags.Count} Tag(s) found");
            foreach (HfTag tag in e.Tags)
            {
                Console.WriteLine($" {tag.TID}");
            }
        };
        // connect the reader with timeout
        try
        {
            reader.Connect(2000);
        }
        catch (MetratecReaderException e)
        {
          Console.WriteLine($"Can not connect to reader ({e.Message}). Program exits");
          return;
        }
        // fetches the current inventory - if an inventory listener exists, this method also triggers the listener
        List<UhfTag> tags = reader.GetInventory();
        Console.WriteLine($"Current inventory: {tags.Count} Tag(s) found");
        foreach (UhfTag tag in tags)
        {
          Console.WriteLine($" {tag.EPC}");
        }

        reader.StartInventory();
        Console.WriteLine("Continuous inventory scan started - Press any key to stop");
        Console.ReadKey();
        reader.StopInventory();
        // Disconnect reader
        reader.Disconnect();
      }
      catch (MetratecReaderException e)
      {
        Console.WriteLine(e.ToString());
      }
    }
  }
}

License

MIT License