Ble boise codecamp
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Bluetooth Low Energy (BLE) allows for low power communication between devices. BLE devices are typically powered by button cell batteries and have operating ranges of less than 40 meters. BLE is designed for low cost, low power consumption, and high deployment volumes for uses like the Internet of Things and personal area networks. The document discusses BLE architecture, usage models, services and characteristics that devices provide to communicate functionality, and the iOS Core Bluetooth framework for communicating with BLE devices from iOS apps. It provides demos of using an iPhone as a BLE peripheral and connecting to BLE devices like a key fob simulator and heart rate monitor.
![BluetoothtechnologyEnergy
Newer Bluetooth
Low distinct from
classic Bluetooth
Designed for low cost, low power
consumption, and extremely high
deployment volumes
Internet of Things, Personal Area
Networks
Devices typically powered by button cell
batteries
Low data rate (<0.3Mbps) [Contrast with 54Mbps v3.0]
Operating ranges are close proximity
typically less than 40 meters (dependent](https://image.slidesharecdn.com/bleboisecodecamp-130311150323-phpapp02/85/Ble-boise-codecamp-3-320.jpg)
![Last Prep 際際滷!
Objective-C
syntax for demo code
[receiver message]
receiver is the object
message is the method invoked on the object
C#/Java analagous expression: object.method
Objective-C also uses dot notation convention when accessing
properties of an object
properties = C#/Java fields
Objective-C Interfaces analagous to C#/Java Classes
Objective-C Protocols analgous to C#/Java Interfaces
Lastly Objective-C self equivalent to C#/Java this](https://image.slidesharecdn.com/bleboisecodecamp-130311150323-phpapp02/85/Ble-boise-codecamp-9-320.jpg)
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Ble boise codecamp
- 2. Bluetooth 4.0 Low Energy Device Scanner An iOS Core BluetoothBluetooth Low Energy is also available on Samsung Application Galaxy S III and the Windows Surface Tablet. Discover, connect, and use Bluetooth 4.0 devices Boise Code Camp 2013 King Harald Bluetooth Presenter: Chip Keyes King Nordic Gormsson Harald Region Gormsson chipk215@msn.com
- 3. BluetoothtechnologyEnergy Newer Bluetooth Low distinct from classic Bluetooth Designed for low cost, low power consumption, and extremely high deployment volumes Internet of Things, Personal Area Networks Devices typically powered by button cell batteries Low data rate (<0.3Mbps) [Contrast with 54Mbps v3.0] Operating ranges are close proximity typically less than 40 meters (dependent
- 4. BLE 4.0 Demo Devices TI CC2540 Key Fob 60beat Bluetooth Heart Rate Monitor ? ? New device type!
- 5. Bluetooth Architecture Today Applications Applications Apps ! Software Abstraction Generic Access Protocol Generic Access Protocol Host Generic Attribute Protocol Generic Attribute Protocol Multiplexing Layers Attribute Protocol Attribute Protocol Security Security & Security Logical Link Control & Adaptation Protocol Logical Link Control & Adaptation Protocol & Protocols Host Controller Interface Host Controller Interface Link Layer (advertising, scanning, connections) Link Layer (advertising, scanning, connections) Controller Physical Layer (Radio) Physical Layer (Radio) Direct Test Direct Test
- 6. Bluetooth 4.0 Usage Model Functionality User Functionality Provider Advertise Discover Interact User Device Client Server Manifested in code Central Peripheral Master Slave Sophisticated UI Little or No UI*
- 7. Servers Deliver Functionality via Services Peripheral UUID - Universally Unique Identifiers (16 or 128 bits) identify Services 1 to N and Characteristics Device Information N Service Heart Rate Service Services Registered Services 1 to N Registered Characteristics Heart Rate N Measurement Characteristic Model Number String s 1 to N *Profiles are services working together according N to a specification. Extended Properties, Descripto Configuration, etc. rs
- 8. iOS Core Bluetooth Framework Principal Classes CBCentralManager & delegate (Client support) CBPeripheral & delegate (represents device) CBService (a service on the device) CBCharacteristic (a characteristic supporting a service) Characteristics can be of type read, write, or notification/indication Notifications are events which clients can subscribe to which result in pushed updates from the server
- 9. Last Prep 際際滷! Objective-C syntax for demo code [receiver message] receiver is the object message is the method invoked on the object C#/Java analagous expression: object.method Objective-C also uses dot notation convention when accessing properties of an object properties = C#/Java fields Objective-C Interfaces analagous to C#/Java Classes Objective-C Protocols analgous to C#/Java Interfaces Lastly Objective-C self equivalent to C#/Java this
- 10. iOS Devices Can Be Peripherals in iOS 6.0! Functionality User Functionality Provider Advertise Discover Interact iPhone/iPad on both sides of the connection Demo - TI Key Fob Simulator Demo - Heart Rate Monitor Simulator
- 11. Bluetooth Low Energy PicoNets C C C C P P P P P P P P C = Central/Master Not Currently Permitted P = Peripheral/Slave
- 12. Resources Code Camp Demo Code https://github.com/chipk215/ble_scanner https://github.com/chipk215/keyfobsim Bluetooth Low Energy Web Site http://www.bluetooth.com/Pages/low-energy.aspx Bluetooth Low Energy Specification: https://www.bluetooth.org/Technical/Specifications/adopted.htm (Core Version 4.0) StackOverflow core-bluetooth, bluetooth-lowenergy tags http://stackoverflow.com
- 13. Resources TechBasic - A BASIC environment for iOS available in the app store which provides an Bluetooth Low Energy API. Educational friendly projects. http://www.byteworks.us/Byte_Works/techB ASIC.html Lots of well documented sample code. No Apple Development license or Xcode environment required. Download program files to the device using iTunes.
- 14. Resources iTunes University - Stanford CS193p Coding Together: Developing Apps for iPhone and iPad (Winter 2013 Latest Offering) This course significantly accelerated my iOS indoctrination. It is fun, there are guest lecturers, and the assignments are always interesting!
- 15. Local Resources Boise Cocoa Heads contact Ron Adams ( ronladams7@gmail.com http://cocoaheads.org/us/BoiseIdaho/index.html googleGroup: http://bit.ly/cocoaHeadsBoise meetingLocation: http://goo.gl/maps/80eiQ http://twitter.com/cocoaheadsboise http://cocoaheads.tv
Editor's Notes
- #3: Harald "Bluetooth" Gormsson ( Old Norse : Haraldr bl叩t寧nn Gormsson , Danish : Harald Bl奪tand Gormsen ) (probably born c. 935) was the son of King Gorm the Old and of Thyra Dannebod . He died in 985 or 986 having ruled as King of Denmark from c. 958 and King of Norway for a few years probably around 970. "Bluetooth" now commonly refers to the Bluetooth wireless specification designed by Ericsson , the major Swedish telecommunications organization, to enable cable-free connections between computers, mobile phones, PDAs, printers, etc. The Bluetooth communications protocol in these devices is named after this king, ostensibly due to his abilities to make diverse factions communicate with each other. According to legend, he gained the nickname "Bluetooth" due to his love of blueberries, which stained his teeth. The Bluetooth logo consists of the Nordic runes for his initials, H and B ( Long-branch runes version). [13]