In The Hand Ltd

Bluetooth

  • Wrapping up 2020

    I haven’t posted as much as I would have liked this year, because “reasons” but I thought I would put together a short post to wrap up some of the things that have been going on behind the scenes. 32feet… Continue reading

  • Bluetooth Virtual COM Ports

    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… Continue reading

  • Asyncify a method and event response

    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… Continue reading

  • Changes coming in Xamarin Android BluetoothSocket

    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… Continue reading

  • New Year, New 32feet.NET Library

    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… Continue reading

    New Year, New 32feet.NET Library

  • Xamarin macOS Binding Libraries

    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.… Continue reading

  • 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… Continue reading

  • 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… Continue reading

  • 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… Continue reading

  • Read iBeacons from UWP

    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… Continue reading