Bluetooth Low Energy: The Developer's Handbook

Robin Heydon

Oct 2012 · Prentice Hall

About this ebook

The First Complete Guide to Bluetooth Low Energy: How It Works, What It Can Do, and How to Apply It

A radical departure from conventional Bluetooth technology, Bluetooth low energy (BLE) enables breakthrough wireless applications in industries ranging from healthcare to transportation. Running on a coin-sized battery, BLE can operate reliably for years, connecting and extending everything from personal area network devices to next-generation sensors. Now, one of the standard’s leading developers has written the first comprehensive, accessible introduction to BLE for every system developer, designer, and engineer.

Robin Heydon, a member of the Bluetooth SIG Hall of Fame, has brought together essential information previously scattered through multiple standards documents, sharing the context and expert insights needed to implement high-performance working systems. He first reviews BLE’s design goals, explaining how they drove key architectural decisions, and introduces BLE’s innovative usage models. Next, he thoroughly covers how the two main parts of BLE, the controller and host, work together, and then addresses key issues from security and profiles through testing and qualification. This knowledge has enabled the creation of Bluetooth Smart and Bluetooth Smart Ready devices.

This guide is an indispensable companion to the official BLE standards documents and is for every technical professional and decision-maker considering BLE, planning BLE products, or transforming plans into working systems.

Topics Include

• BLE device types, design goals, terminology, and core concepts
• Architecture: controller, host, applications, and stack splits
• Usage models: presence detection, data broadcasting, connectionless models, and gateways
• Physical Layer: modulation, frequency band, radio channels, power, tolerance, and range
• Direct Test Mode: transceiver testing, hardware interfaces, and HCI
• Link Layer: state machine, packets, channels, broadcasting, encryption, and optimization
• HCI: physical/logical interfaces, controller setup, and connection management
• L2CAP: channels and packet structure, and LE signaling channels
• Attributes: grouping, services, characteristics, and protocols
• Security: pairing, bonding, and data signing
• Generic Access Profiles: roles, modes, procedures, security modes, data advertising, and services
• Applications, devices, services, profiles, and peripherals
• Testing/qualification: starting projects, selecting features, planning, testing, compliance, and more

Ratings and reviews

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About the author

Robin Heydon began working on the Wibree project in 2007–a project that evolved into the Bluetooth low energy specification covered here. Heydon cochaired the original specification group and drove the spec through to publication. Heydon has worked in wireless communications since 2000, first as a firmware engineer and now as a full-time standards architect. He has contributed to fixing and improving every version of the Bluetooth specification. In 2010, in recognition of his work, he was honored as one of only a small group of members of the Bluetooth SIG Hall of Fame.