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32feet.NET - Personal Area Networking for .NET

32feet.NET is an open-source project to make personal area networking technologies such as Bluetooth, Infrared (IrDA) and more, easily accessible from .NET code. Supports desktop, mobile or embedded systems. 32feet.NET is free for commercial or non-commercial use. If you use the binaries you can just use the library as-is, if you make modifications to the source you need to include the 32feet.NET License.txt document and ensure the file headers are not modified/removed. The project currently consists of the following libraries:-

  • Bluetooth Classic
  • Bluetooth LE
  • IOBluetooth/IOBluetoothUI bindings for Xamarin Mac
  • IrDA
  • Object Exchange (Obex)

Bluetooth support requires .NET Framework v4.6.1 or later for desktop Windows 7, 8, 10 and 11. Android and Apple macOS and iOS are also supported using Xamarin or .NET 6.0 and above.

Support 32feet

Documentation / Tutorial

The user guide is available in the Wiki section. Please start by reading it. It contains general information firstly on the various features contained in the library, and on what type of Bluetooth connection you want. It also contains information on using each feature.

Detailed API documentation is available at


Downloads are available here on the Downloads tab. Packages are also available at NuGet:-

  • InTheHand.Net.Bluetooth - Bluetooth Classic (v4.x) NuGet version

  • InTheHand.BluetoothLE - Bluetooth Low Energy (v4.x) NuGet version

  • InTheHand.IOBluetooth - IOBluetooth bindings for Xamarin Mac NuGet version

  • InTheHand.IOBluetooth - IOBluetoothUI bindings for Xamarin Mac NuGet version

  • InTheHand.Net.IrDA (v4.x) NuGet version

  • InTheHand.Net.Obex (v4.x) NuGet version

  • 32feet.NET - Legacy (v3.x) NuGet version


Alan's 32feet.NET Development Blog

Peter's Blog


Many thanks to NDepend for their support. Many thanks to Aton Spa (Italy) for commissioning and funding the implementation of StoneStreet One Bluetopia support.


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