I was thinking about a comment on a Gist I wrote some time ago and thought I’d written a blog post on the topic, but when I couldn’t find any sign of it I decided to start from scratch as I’d have probably needed to update it anyway.The Bluetooth stack in Windows has supported virtual […]
Category: Bluetooth
It’s common to come across a pattern where you call a synchronous method to kick off an activity then await an event which gives you the result (or an error). In the process of building 32feet‘s Bluetooth LE library this became a familiar sight both for Android and iOS APIs. The goal was to create […]
While debugging an app I came across this new message in the Output window:- “Not wrapping exception of type Java.IO.IOException from method `Read`. This will change in a future release.” When working with an RFComm service on Android you use a BluetoothSocket which in turn owns two Streams – one for Input and one for […]
I’ve been working away on the Bluetooth code for some time. I’d been meaning to modernise the code and build with .NET Standard and NuGet in mind and ideally support more platforms. However the project has stopped and started a few times and gone down a few dead ends. I had planned to rework the […]
In creating an IOBluetooth binding for Xamarin Mac I learned about Objective Sharpie and binding libraries. There is little documentation on this but it is fairly similar to Xamarin iOS and for that there is a lot more source material. The output from Objective Sharpie gives you binding definitions which you can use in a […]
Categories
32feet.NET and Audio
There are a few different Bluetooth profiles which handle audio, but they all work in a very similar way. There are two connections open between the client (usually a phone) and the server (some kind of audio device such as a speaker or car entertainment system). The first of these is an Rfcomm channel which […]
Categories
Bluetooth with Xamarin Mac
I’ve been working on adding macOS support to 32feet.NET and there are two frameworks in macOS for Classic Bluetooth – IOBluetooth and IOBluetoothUI. I soon discovered that neither of these had bindings in the standard Xamarin.Mac package which is referenced by all Xamarin Mac applications. I decided to build binding libraries for both APIs and […]
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Bluetooth from Unity
An ongoing issue with 32feet.NET is that it wouldn’t work inside Unity. The reason is that the System.Net.Sockets classes behave slightly differently in the Mono runtime to the desktop .NET framework and you can’t create a Socket using the Bluetooth specific address family. In order to work around the issue it was necessary to P/Invoke […]
I recently got some estimate beacons and have been trying out various things with them. By default they are configured to support Apple’s iBeacon format and could be used in an iOS app to provide location awareness in a close environment. You can read the same data from UWP and can add some location/context awareness […]
I’ve seen a few articles on migrating your projects from CodePlex but they kind of ignore the Wiki and suggest just copying and pasting the text across. There is a way which will copy the entire contents and only require a little manual work. The instructions below are the steps I took to migrate the […]
In The Hand Ltd 