In The Hand Ltd

Bluetooth

  • 12 Days of Bluetooth – #10 Hands-Free

    Bluetooth Classic contains a handful of profiles which use AT commands to work with telephony devices over an RFComm connection. We discussed these briefly in #3 of this series and today will look in more detail and the most commonly… Continue reading

  • 12 Days of Bluetooth – #9 Pairing

    Both Classic and Low Energy devices can provide functionality to unpaired devices or require pairing first before exchanging sensitive information. However, what exactly is pairing? Stick a Pin in it The original mechanism for pairing uses a four digit PIN… Continue reading

  • 12 Days of Bluetooth – #8 Bluetooth Low Energy in Code

    Following on from the last post, which covered the technology of Bluetooth Low Energy, this post will look at how to use it from code using InTheHand.BluetoothLE. We’re going to look at an example using a simple but widely used… Continue reading

  • 12 Days of Bluetooth – #7 Bluetooth Low Energy

    In 2011, Bluetooth 4.0 was introduced and contained the biggest update to the standard yet. It introduced a whole new way of talking to Bluetooth devices which allowed them to use considerably less power. Bluetooth Low Energy works entirely separately… Continue reading

  • 12 Days of Bluetooth – #6 Bluetooth Classic on iOS

    Today we take a quick detour to look at something specific to Apple devices. You Can’t Handle The API! iOS has always been the most “locked-down” mobile platform and one of its restrictions has been a lack of support for… Continue reading

  • 12 Days of Bluetooth – #5 Coding Bluetooth Classic

    All the previous posts in this series have talked about Bluetooth technology, in this post we will look at a practical example (using .NET of course!). 32feet.NET From the initial release of the .NET Compact Framework, Microsoft included a library… Continue reading

  • 12 Days of Bluetooth – #4 Serial Port Profile

    Today we are delving into the details of a basic and widely used service. We may well come back and revisit the lower layers, but this topic will look at something you are likely to use when doing Bluetooth Classic… Continue reading

  • 12 Days of Bluetooth – #3 Protocols, Profiles and Services

    In this entry we look into the architecture of Bluetooth a little more. Stack to Basics The Bluetooth protocol stack consists of separate layers from the physical radio up to the high level services which enable various uses from headsets… Continue reading

  • 12 Days of Bluetooth – #2 Discovery

    Continuing the series, today’s post looks at how we discover and identify Bluetooth devices. I’m Not a Number Every Bluetooth device has a unique numerical address baked into the hardware – like a MAC address for a network adaptor. It… Continue reading

  • 12 Days of Bluetooth – #1 Introduction

    I thought I would set myself the challenge of blogging about Bluetooth between now and Twelfth Night. I’m going to look at 12 topics covering the technology, the various services and capabilities as well as, of course, referencing how 32feet… Continue reading