The First Complete Guide to Bluetooth Low Energy How It Works, What It Can Do, and How to Apply ItA 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 standards 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 BLEs design goals, explaining how they drove key architectural decisions, and introduces BLEs 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 systemsTopics 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 LCAP 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

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