book

Getting Started with Bluetooth Low Energy

by Kevin Townsend, Carles Cufí, Akiba, Robert Davidson

April 2014

Beginner to intermediate

180 pages

4h 42m

English

O'Reilly Media, Inc.

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Who This Book Is ForHow to Use This BookOverview of BLETools for Development and TestingDevelopment PlatformsConventions Used in This BookUsing Code ExamplesSafari® Books OnlineHow to Contact UsAcknowledgments
What Makes BLE DifferentThe SpecificationConfigurationsBased on Specification SupportBased on Chip CountKey LimitationsData ThroughputOperating RangeNetwork TopologyBroadcasting and ObservingConnectionsProtocols versus ProfilesGeneric ProfilesUse-Case-Specific ProfilesSIG-defined GATT-based profilesVendor-Specific Profiles
Physical LayerLink LayerBluetooth Device AddressAdvertising and ScanningConnectionsHost Controller Interface (HCI)Logical Link Control and Adaptation Protocol (L2CAP)Attribute Protocol (ATT)ATT operationsSecurity Manager (SM)Security ProceduresPairing AlgorithmsSecurity KeysGeneric Attribute Profile (GATT)Generic Access Profile (GAP)
RolesModes and ProceduresBroadcast and ObservationDiscoveryDiscoverability modesDiscovery proceduresConnection EstablishmentConnection establishment modesConnection establishment proceduresAdditional GAP ProceduresSecurityAddress TypesAuthenticationSecurity ModesSecurity Modes and ProceduresAdditional GAP DefinitionsAdvertising Data FormatGAP Service
RolesUUIDsAttributesHandleTypePermissionsValueAttribute and Data HierarchyServicesCharacteristicsCharacteristic declaration attributeCharacteristic value attributeCharacteristic DescriptorsExtended Properties DescriptorCharacteristic User Description DescriptorClient Characteristic Configuration DescriptorCharacteristic presentation format descriptorExample ServiceAdvanced Attribute ConceptsAttribute CachingGATT Attribute Data in Advertising PacketsFeaturesExchange MTUService and Characteristic DiscoveryReading Characteristics and DescriptorsWriting Characteristics and DescriptorsServer-Initiated UpdatesSecurityGATT Service
nRF51822-EK (Nordic Semiconductors)Technical SpecificationsSoftDevice ArchitectureWorking with the nRF51822-EKExamples and ToolchainsCC2541DK-MINI (Texas Instruments)Other Hardware Platforms and ModulesLaird’s BL600 ModuleBluegiga’s BLE112/BLE113 ModulesRFDuino
PCA10000 USB Dongle and the Master Control PanelPCA10000 USB Dongle and WiresharkCC2540 USB Dongle and SmartRF SnifferSmartRF-to-Wireshark ConverterBluez hcitool and gatttool
Bluetooth Application AcceleratorSensorTagLightBlue for iOSnRF Master Control Panel for Android
Getting StartedGet the HardwareGet the SoftwareConfigure the HardwareStart a New ProjectInitializing the BLE LibraryConnecting to a Remote DeviceCommunicating with a Remote Device
Simple Battery-Level PeripheralScanning for Remote PeripheralsConnecting to Remote PeripheralsLooking Up Services Associated with a Remote PeripheralLooking Up Characteristics Associated with ServicesMethods for Reading and Decoding CharacteristicsiBeaconAdvertisingRangingImplementing an iBeacon AppApple Notification Center Service with an External Display

mbed BLE APIEmbedded ToolchainsInstalling GNU Tools on OS X and LinuxInstalling GNU Tools on WindowsnRF51822 GNU Codebase and Sample ProjectGetting the nRF51822 GNU CodebasenR51822 GNU Codebase StructureCompiling ProjectsWriting to the nRF51822Going Further

Content preview from Getting Started with Bluetooth Low Energy

Chapter 9. iOS Programming

Apple was an early supporter of Bluetooth 4.0 and, as a result, there is a rich set of APIs and tools to support development of BLE devices and applications using iOS. The iOS device in question is usually an iPhone (iPhone 4S or later), but iOS also supports BLE on all relatively new iPads (iPad 3 or later, or any iPad mini) and the fifth generation iPod Touch devices.

BLE is also supported on later-generation Macs—including iMac (built after late 2012), MacBook Pro (2012 or later), MacBook Air (2011 or newer), and Mac Pro (2013 or later)—but this chapter will focus on iOS, specifically iOS 7 and later.

The types of BLE devices and applications most relevant to iOS programming fall into three main categories:

Peripheral devices with iOS apps: In this category, BLE peripheral devices and sensors are paired with corresponding iOS apps—for example, a bicycling power and cadence meter that uses the iPhone to display and record data.
iBeacon devices: The iBeacon is a broadcast-only device that uses BLE advertising (see Advertising and Scanning) to augment navigation indoors, where GPS signals and cell phone towers typically can’t penetrate, to provide location services to iOS devices (and also Android devices).
Peripheral devices with Apple Notification Center Service: Built into iOS, the Apple Notification Center displays alerts and notifications, such as incoming caller ID and updates from news services, on the screen of the iOS device. Using the Apple Notification ...