knx-dotnet

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KNX is a .Net Core library to access the KNX Bus via KnxNetIP Protocol using both Tunneling or Routing connections including some advanced features like Gateway Discovery, ...

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# knx-dotnet Library for .NET Core

This is a .NET Core library that allows communication with KNXnet/IP routers and gateways using either the routing or
the tunneling protocol. It provides a simple and easy-to-use interface for sending and receiving KNX telegrams over IP
as well as device discovery.

## Installation

The library can be installed via NuGet package manager.
Simply search for `knx-dotnet` and install the package to your .NET project.

```bash
dotnet add package knx-dotnet --version 0.3.0-alpha
```

**_Make sure you search for PreRelease packages, as there is currently no stable release available!_**

## Usage

#### Discovering knx devices

```csharp

var routingClient = new KnxNetIpRoutingClient(
    options =>
    {
        options.DeviceAddress = "1/1/2";
    });

routingClient.KnxDeviceDiscovered += (_, args) =>
{
    Console.WriteLine($"Discovered device: {args.FriendlyName} - ConnectionString: {args.ConnectionString}");
};

await routingClient.ConnectAsync();
await routingClient.DiscoverAsync();
```

#### Sending a message using the routing protocol

```csharp

using Knx.KnxNetIp;

// create a Routing client
var routingClient = new KnxNetIpRoutingClient();

// connect to the KNXnet/IP gateway
await routingClient.Connect();

// create a fully qualified knx message
var message = new KnxMessage
{
    MessageType = MessageType.Write,
    MessageCode = MessageCode.Request,
    Priority = MessagePriority.Auto,
    SourceAddress = new KnxDeviceAddress(1, 1, 2),
    DestinationAddress = new KnxLogicalAddress(1, 1, 28),
    TransportLayerControlInfo = TransportLayerControlInfo.UnnumberedDataPacket,
    DataPacketCount = 0,
    Payload = new DptBoolean(false).Payload
};

// and send the message
await routingClient.SendMessageAsync(message);

// or use the read or write extensions to keep it as simple as possible
tunnelingClient.Write(KnxAddress.Logical(1,1,28), new DptBoolean(true));

```

#### Sending a message using the tunneling protocol

```csharp

using var tunnelingClient = new KnxNetIpTunnelingClient(
    new IPEndPoint(IPAddress.Parse("10.0.2.5"), 3671),
    KnxAddress.Device(1, 1, 2));

await tunnelingClient.Connect();

tunnelingClient.Write(KnxAddress.Logical(1,1,1), new DptBoolean(true));

```

## Tested devices

- Siemens N148/21 Gateway
- Weinzierl KNX IP Router 750
- ...

## Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

## License

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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