I’d completely forgotten about Pi day until I saw someone post about it online and I thought I should write about the happy coincidence that I’ve been working with a Raspberry Pi today. Last week I took delivery of a new Raspberry Pi. I have an older Pi 2 but I wanted to have a […]
Category: Bluetooth
There is a particular issue when writing any code which will run on Android which presents external UI through an Intent or uses broadcasts in that you need to have a reference to the current Activity. I covered this in my last post. Following on from that I moved the code to a new library […]
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12 Days of Bluetooth – #12 Summary
Bluetooth is Big, Really Big Looking back over the different functionality I’ve covered in these past few posts has highlighted that Bluetooth is used for a wide range of scenarios, and it has grown massively from its simple beginnings. It is fair to say that looking at the evolution of each specification version that more […]
When we last looked at Bluetooth Low Energy we looked at the code required to read the battery level from a device. There are two things we didn’t cover – writing values and sending commands to a device. Writing in the Air If you’re familiar with the service that you are writing to the process […]
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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 implemented one – Hands Free Profile. Look No Hands! Two similar profiles exist in Headset […]
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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 code. One device would need to be discoverable, and the other device upon discovering it […]
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 service – Battery Service. You can probably guess what it is used for. Step One […]
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 from Bluetooth Classic but the two can coexist. For example most mobile phones will support […]
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 developers to work with Bluetooth Classic devices. “But wait, 32feet.NET has support for 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 to work with IrDA. This used an API similar to TcpClient and TcpListener but also […]
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