Overview

.NET BlueZ Server is a powerful library designed to facilitate the creation of Bluetooth Low Energy (BLE) peripherals and efficiently manage centrals on Linux using .NET Core. Leveraging the capabilities of BlueZ under the hood, this library offers a seamless API that preserves the object structure of BlueZ while streamlining D-Bus communication for a more developer-friendly experience. This library builds upon .NET BLE Server, introducing specialized methods for handling connected centrals to BLE peripherals.

Key features

• BLE Peripheral Creation
• Adapter Management
• Central Management
• Pair device
• Remove Device
• Get all paired devices
• Get central object path on Read and Write request

Examples

Demo Example

Find demo project under /example directory

Create BLE peripheral

ServerContext _CurrentServerContext = new ServerContext();
await BleAdvertisement.RegisterAdvertisement(_CurrentServerContext);
await BleGattApplication.RegisterGattApplication(_CurrentServerContext);
DeviceManager.SetDevicePropertyListenerAsync(_CurrentServerContext, OnDeviceConnectedAsync);

Listen to Central property change

private async void OnDeviceConnectedAsync(IDevice1 device, PropertyChanges changes)
{
    foreach (var change in changes.Changed)
    {
        Console.WriteLine($"{change.Key}:{change.Value}");                  
    }
}

Get BLE Adapter

AdapterManager.GetAdapter(_CurrentServerContext);

Turn ON/OFF BLE Adapter

var isAdapterOn = AdapterManager.SetAdapterPowerOn(_CurrentServerContext);
var isAdapterOff = AdapterManager.SetAdapterPowerOff(_CurrentServerContext);

Get paired devices

var devices = await DeviceManager.GetDeviceListAsync(_CurrentServerContext);

Remove paired device

await DeviceManager.RemoveDeviceAsync(_CurrentServerContext, iDevice);

Get Device from the Address

 var device = await DeviceManager.GetDeviceAsync(_CurrentServerContext, address);

Get Device from the object path

var device = await DeviceManager.GetDeviceByObject(_CurrentServerContext, address);

Pair device

var paired = await device.GetPairedAsync();
if (!paired)
{
    var response = await DeviceManager.PairDeviceAsync(_CurrentServerContext,device);
}

Useful references

Resource	Link
BlueZ GATT API documentation	https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/gatt-api.txt
Presentation BLE on Linux	https://elinux.org/images/3/32/Doing_Bluetooth_Low_Energy_on_Linux.pdf

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