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Bluetooth SIG champions Bluetooth LE against Thread

17 Jul 2014  | Nick Flaherty

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Device interoperability just isn't an issue. It has an effective range of up to 100m and Bluetooth 4.1, introduced in December last year, added a means to create a dedicated channel which laid the foundations for IPv6 connectivity, he said. Bluetooth Smart mesh is already possible and we're working to make it a reality under the Bluetooth standard. If you want to speak to a few things, you can use a niche technology, if you want to speak to a few billion things in an ultra-power efficient way, then Bluetooth Smart is the way.

UK-based chip designer CSR has developed its own mesh protocol that sits on top of Bluetooth 4.0 that it is releasing as an open standard.

"With the CSRmesh technology CSR has demonstrated that Bluetooth Smart can form the basis of mesh networks that can collect data from and control thousands of devices. The wide adoption of Bluetooth Smart in tablets and smartphones enables rapid adoption and a simple personal user experience for consumers," said Rick Walker, Marketing Manager for IoT at CSR. "Technically the CSRmesh uses a flood approach that simplifies the user experience so that the consumer can just switch on the device and needs no understanding of the networking roles that are required in a routed mesh approach, and CSRmesh uses the smartphone or tablet for direct control and doesnt require a specific bridge hardware to be used to interact with Internet of Things (IoT) devices."

CSRmesh doesnt offer full IP addressing but adopts a light weight data structure which enables much lower power and lower processing burden for simple devices. It has already been adopted for lighting solutions, and will be extended later in the year to further Smart Home devices and CSR is in the process of opening the specification to additional partners such that it can be widely adopted in IoT products, he said.

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