Practical Core Bluetooth in IoT & Wearable projects @ UIKonf 2016
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The document provides an overview of practical applications of Core Bluetooth in IoT and wearable projects, highlighting the capabilities of Bluetooth Low Energy (BLE) for iOS developers. It explains key concepts such as BLE connections, sensor data transmission, and background functionalities in an app context, emphasizing the importance of defining GATT (Generic Attribute Profile) for sensor interactions. Additionally, it discusses hardware projects involved with BLE and offers insight into app development and limitations faced during testing and implementation.
![Scan
Step 1. Scan
Advertise
Discover
: Search for nearby BLE devices
func centralManager(central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(“Discovered a BLE device!”)
}](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-34-320.jpg)
![Scan
Step 1. Scan
Advertise
Discover
: Search for nearby BLE devices
func centralManager(central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(“Discovered a BLE device!”)
}
Central](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-35-320.jpg)
![Scan
Step 1. Scan
Advertise
Discover
: Search for nearby BLE devices
func centralManager(central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(“Discovered a BLE device!”)
}
Peripheral Central](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-36-320.jpg)
![Implementation
• Add an option when initializing the
CBCentralManager object.
let options = [
CBCentralManagerOptionRestoreIdentifierKey: "somekey"
]
centralManager = CBCentralManager(
delegate: self,
queue: queue,
options: options)](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-138-320.jpg)
![Implementation
• Implement the delegate method which is called when
the app is restored.
func centralManager(central: CBCentralManager,
willRestoreState dict: [String : AnyObject])
{
print("Restored")
}](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-139-320.jpg)
![func centralManager(
central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(advertisementData)
}](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-191-320.jpg)
![func centralManager(
central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(advertisementData)
}
Filtered by iOS!](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-192-320.jpg)
![func centralManager(
central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(advertisementData)
}
Filtered by iOS! → Can’t see all of the advertisement data](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-193-320.jpg)
![func centralManager(
central: CBCentralManager,
didDiscoverPeripheral peripheral: CBPeripheral,
advertisementData: [String : AnyObject],
RSSI: NSNumber!)
{
print(advertisementData)
}
Filtered by iOS!
e.g. Can’t see the ‘Manufacture Data’ field of iBeacon
→ Can’t see all of the advertisement data](https://image.slidesharecdn.com/uikonf201605211-160523094115/85/Practical-Core-Bluetooth-in-IoT-Wearable-projects-UIKonf-2016-194-320.jpg)
Practical Core Bluetooth in IoT & Wearable projects @ UIKonf 2016
- 1. Practical Core Bluetooth in IoT & Wearable projects Shuichi Tsutsumi @shu223 iOS Freelancer UIKonf 2016 - Berlin
- 2. Overview • Basics of Core Bluetooth • Practical Core Bluetooth
- 4. Bluetooth Low Energy (BLE) • Wireless technology - no network infrastructure required
- 5. Bluetooth Low Energy (BLE) • Wireless technology - no network infrastructure required Wi-Fi
- 6. Bluetooth Low Energy (BLE) • Wireless technology - no network infrastructure required BLE
- 7. • Low energy
- 8. • Low energy • NOT compatible with Classic BT
- 9. • Low energy • NOT compatible with Classic BT • Uses 2.4 GHz radio frequencies
- 10. • Low energy • NOT compatible with Classic BT • Uses 2.4 GHz radio frequencies • Marketed by the Bluetooth SIG
- 11. • Low energy • NOT compatible with Classic BT • Uses 2.4 GHz radio frequencies • Marketed by the Bluetooth SIG • etc…
- 12. • Low energy • NOT compatible with Classic BT • Uses 2.4 GHz radio frequencies • Marketed by the Bluetooth SIG • etc…
- 13. The most important thing for iOS developers
- 14. The API ‘Core Bluetooth’ is open for developers
- 15. The API ‘Core Bluetooth’ is open for developers • API for Classic BT is NOT open. - Requires MFi certification.
- 16. BLE is almost the ONLY way to enable iOS apps to communicate with external hardware without infrastructure or MFi.
- 19. Moff Band Moff App
- 20. Moff Band Moff App BLE Connection
- 21. Moff Band Moff App BLE Connection Sensors - Gyroscope - Accelerometer
- 22. Moff Band Moff App Sensor Data BLE Connection Sensors - Gyroscope - Accelerometer
- 23. Moff Band Moff App Sensor Data BLE Connection Sensors - Gyroscope - Accelerometer Analyze sensor data
- 24. Moff Band Moff App Sensor Data BLE Connection Sensors - Gyroscope - Accelerometer Analyze sensor data Recognize - Gesture - Posture
- 25. Moff Band Moff App Sensor Data BLE Connection Sensors - Gyroscope - Accelerometer Analyze sensor data Recognize - Gesture - Posture Play sounds
- 26. Sensor Data How sensor data is sent with Core Bluetooth BLE Connection
- 27. Step 1. Scan
- 28. Step 1. Scan: Search for nearby BLE devices
- 29. Step 1. Scan: Search for nearby BLE devices
- 30. Step 1. Scan Advertise : Search for nearby BLE devices
- 31. Scan Step 1. Scan Advertise : Search for nearby BLE devices
- 32. Scan Step 1. Scan Advertise : Search for nearby BLE devices centralManager.scanForPeripheralsWithServices(nil, options: nil)
- 33. Scan Step 1. Scan Advertise Discover : Search for nearby BLE devices
- 34. Scan Step 1. Scan Advertise Discover : Search for nearby BLE devices func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(“Discovered a BLE device!”) }
- 35. Scan Step 1. Scan Advertise Discover : Search for nearby BLE devices func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(“Discovered a BLE device!”) } Central
- 36. Scan Step 1. Scan Advertise Discover : Search for nearby BLE devices func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(“Discovered a BLE device!”) } Peripheral Central
- 37. Step 2. Connect
- 39. Connect Step 2. Connect centralManager.connectPeripheral(peripheral, options: nil)
- 40. Connect Step 2. Connect centralManager.connectPeripheral(peripheral, options: nil) func centralManager(central: CBCentralManager, didConnectPeripheral peripheral: CBPeripheral) { print(“Connected!”) }
- 42. Step 3. Subscribe: Ready to receive data
- 43. Step 3. Subscribe: Ready to receive data GATT = Generic Attribute Profile
- 44. Moff Service xx Service Step 3. Subscribe: Ready to receive data GATT = Generic Attribute Profile
- 45. Moff Service xx Service Button Characteristic xx Characteristic Sensor Characteristic Step 3. Subscribe: Ready to receive data GATT = Generic Attribute Profile
- 46. Moff Service xx Service Button Characteristic xx Characteristic Sensor Characteristic Subscribe (Request to be notified) Step 3. Subscribe: Ready to receive data GATT = Generic Attribute Profile
- 47. Moff Service xx Service Button Characteristic xx Characteristic Sensor Characteristic Subscribe (Request to be notified) Step 3. Subscribe: Ready to receive data GATT = Generic Attribute Profile peripheral.setNotifyValue(true, forCharacteristic: c)
- 48. Step 4. Notify Moff Service Sensor Characteristic xxxx Characteristic
- 49. Step 4. Notify Moff Service Sensor Characteristic xxxx Characteristic Update the value
- 50. Step 4. Notify Notify subscribers Moff Service Sensor Characteristic xxxx Characteristic Update the value
- 51. Step 4. Notify Notify subscribers Moff Service Sensor Characteristic xxxx Characteristic Update the value func peripheral(peripheral: CBPeripheral, didUpdateValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) { print(“Received sensor data!”) }
- 52. Step 4. Notify Notify subscribers Moff Service Sensor Characteristic xxxx Characteristic Update the value func peripheral(peripheral: CBPeripheral, didUpdateValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) { print(“Received sensor data!”) }
- 53. Hardware Side?
- 54. Hardware Side? I’m sorry, I don’t know…
- 55. BLE
- 56. BLE iOS Engineer
- 57. BLE iOS Engineer
- 58. BLE Firmware Engineer iOS Engineer
- 59. BLE Firmware Engineer iOS Engineer
- 60. HW Projects I’ve worked on as an iOS engineer
- 66. Group conversation system with VoIP - Detects the human voice - Cuts out all background noise
- 67. → Can be used even in areas with poor coverage! Group conversation system with VoIP - Detects the human voice - Cuts out all background noise
- 68. BLE for BONX
- 69. BLE for BONX
- 70. BLE for BONX
- 71. IoT for Cars ‘SmartDrive’
- 72. Printable Open-Source Humanoid “PLEN2”
- 73. Music for the Deaf Daito Manabe/Motoi Ishibashi/Teruoka Masaki/Shuichi Tsutsumi x SOUL FAMILY
- 74. Music for the Deaf Daito Manabe/Motoi Ishibashi/Teruoka Masaki/Shuichi Tsutsumi x SOUL FAMILY iPhone
- 75. Music for the Deaf Daito Manabe/Motoi Ishibashi/Teruoka Masaki/Shuichi Tsutsumi x SOUL FAMILY Electronic Stimulation DeviceiPhone
- 76. Music for the Deaf Daito Manabe/Motoi Ishibashi/Teruoka Masaki/Shuichi Tsutsumi x SOUL FAMILY Commands Electronic Stimulation DeviceiPhone
- 77. Music for the Deaf Daito Manabe/Motoi Ishibashi/Teruoka Masaki/Shuichi Tsutsumi x SOUL FAMILY
- 79. Defining GATT
- 80. GATT to send sensor data Foo Service Sensor Data Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Bar Service xx Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: acc x, acc y, acc z, gyro x, gyro y, gyro z (2bytes for each) xx Characteristic
- 81. GATT to send sensor data Foo Service Sensor Data Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Bar Service xx Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: acc x, acc y, acc z, gyro x, gyro y, gyro z (2bytes for each) xx Characteristic
- 82. GATT to send sensor data Foo Service Sensor Data Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Bar Service xx Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: acc x, acc y, acc z, gyro x, gyro y, gyro z (2bytes for each) xx Characteristic
- 83. GATT to send sensor data Foo Service Sensor Data Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Bar Service xx Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: acc x, acc y, acc z, gyro x, gyro y, gyro z (2bytes for each) xx Characteristic
- 84. GATT to send sensor data Foo Service Sensor Data Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Bar Service xx Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: acc x, acc y, acc z, gyro x, gyro y, gyro z (2bytes for each) xx Characteristic
- 85. GATT to send sensor data Foo Service Sensor Data Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Bar Service xx Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: acc x, acc y, acc z, gyro x, gyro y, gyro z (2bytes for each) xx Characteristic
- 86. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00
- 87. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00
- 88. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00
- 89. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00 Button interactions
- 90. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00 Button interactions
- 91. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00 Button interactions
- 92. GATT to send button interactions Foo Service Button Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Notify Value: 0x01 or 0x00 Button interactions 0x01: Pushed 0x00: Released
- 93. GATT for remote control Foo Service Remote Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Write Value: Horizontal (-100 ~ 100), Vertical (-100 ~ 100)
- 94. GATT for remote control Foo Service Remote Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Write Value: Horizontal (-100 ~ 100), Vertical (-100 ~ 100)
- 95. GATT for remote control Foo Service Remote Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Write Value: Horizontal (-100 ~ 100), Vertical (-100 ~ 100) values
- 96. GATT for remote control Foo Service Remote Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Write Value: Horizontal (-100 ~ 100), Vertical (-100 ~ 100) values
- 97. GATT for remote control Foo Service Remote Control Characteristic UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Properties: Write Value: Horizontal (-100 ~ 100), Vertical (-100 ~ 100) values
- 98. How to define GATT 1. Create UUID for the service & characteristic 2. Define the properties (Read, Notify, Write, etc.) Peripheral → Central: Notify Central → Peripheral: Write 3. Define the value format Usually limited to 20 bytes $ uuidgen CEEA31BC-BEAC-4A78-B7ED-FC96B6254D4C
- 99. Reference: GATT profiles by Bluetooth SIG
- 101. Background behaviors on iOS • Very limited - Listening to music - Getting location data - Downloading data
- 102. Imagine
- 103. If BLE didn’t work in the background…
- 105. You would have to always keep the app in the foreground, while snowboarding!
- 107. You would have to launch the app whenever you go driving!
- 108. What functions can be used in the background?
- 109. What functions can be used in the background? • Scanning peripherals
- 110. What functions can be used in the background? • Scanning peripherals • Connecting with peripherals
- 111. What functions can be used in the background? • Scanning peripherals • Connecting with peripherals • Reading characteristics’ value
- 112. What functions can be used in the background? • Scanning peripherals • Connecting with peripherals • Reading characteristics’ value • Writing characteristics’ value
- 113. What functions can be used in the background? • Scanning peripherals • Connecting with peripherals • Reading characteristics’ value • Writing characteristics’ value • Receiving notifications
- 114. What functions can be used in the background? • Scanning peripherals • Connecting with peripherals • Reading characteristics’ value • Writing characteristics’ value • Receiving notifications Almost all functions can be used even in the background!
- 115. How to support background mode
- 117. Just check this box!
- 118. Limitations
- 119. Limitations • Longer intervals for scanning
- 120. Limitations • Longer intervals for scanning • Must explicitly specify one or more services to scan
- 121. Limitations • Longer intervals for scanning • Must explicitly specify one or more services to scan • CBCentralManagerOptionShowPowerAlertKey option is ignored
- 122. Limitations • Longer intervals for scanning • Must explicitly specify one or more services to scan • CBCentralManagerOptionShowPowerAlertKey option is ignored Resources - Core Bluetooth Programming Guide - Core Bluetooth Framework Reference (also in headers)
- 123. If the app in the background is killed by the system…
- 125. State Preservation and Restoration
- 126. State Preservation and Restoration The system takes over the BLE tasks even after the app is killed.
- 127. State Preservation and Restoration The system takes over the BLE tasks even after the app is killed. - Preserves the state of the app’s central managers and continues the BLE tasks on their behalf.
- 128. State Preservation and Restoration The system takes over the BLE tasks even after the app is killed. - Preserves the state of the app’s central managers and continues the BLE tasks on their behalf. - Relaunches the app into the background and calls the corresponding delegate method.
- 129. State Preservation and Restoration The system takes over the BLE tasks even after the app is killed. - Preserves the state of the app’s central managers and continues the BLE tasks on their behalf. - Relaunches the app into the background and calls the corresponding delegate method. → The app can handle BLE events!
- 131. • The app is killed by the system
- 132. • The app is killed by the system • The user pushes the button on the peripheral device
- 133. • The app is killed by the system • The user pushes the button on the peripheral device • The system receives the notification
- 134. • The app is killed by the system • The user pushes the button on the peripheral device • The system receives the notification • The app is relaunched in the BG and the delegate method is called.
- 135. func peripheral(peripheral: CBPeripheral, didUpdateValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) { print(“Received the characteristic data!”) } • The app is killed by the system • The user pushes the button on the peripheral device • The system receives the notification • The app is relaunched in the BG and the delegate method is called.
- 136. func peripheral(peripheral: CBPeripheral, didUpdateValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) { print(“Received the characteristic data!”) } • The app is killed by the system • The user pushes the button on the peripheral device • The system receives the notification • The app is relaunched in the BG and the delegate method is called. The app can process the button interaction!
- 137. Implementation
- 138. Implementation • Add an option when initializing the CBCentralManager object. let options = [ CBCentralManagerOptionRestoreIdentifierKey: "somekey" ] centralManager = CBCentralManager( delegate: self, queue: queue, options: options)
- 139. Implementation • Implement the delegate method which is called when the app is restored. func centralManager(central: CBCentralManager, willRestoreState dict: [String : AnyObject]) { print("Restored") }
- 141. Testing the restoration • Kill the app as if it was killed by the iOS kill(getpid(), SIGKILL);
- 142. How to test without HW prototypes
- 143. Did the HW prototypes exist when develop the apps? Projects HW prototypes existed? Moff YES WHILL NO BONX NO SmartDrive YES PLEN2 NO Music for the Deaf NO
- 144. Development Kit
- 147. Development Kit BLE Module Display USB interface
- 148. Development Kit BLE Module Display USB interface Battery box
- 149. Development Kit Can start development without creating a circuit ourselves BLE Module Display USB interface Battery box
- 151. Development Kit
- 152. Development Kit App
- 154. Horizontal (-100~100) / Vertical (-100~100) Development Kit App BLE
- 156. Emulator App
- 157. Emulator App • Develop another iOS app as the alternative to the peripheral device
- 158. Emulator App • Develop another iOS app as the alternative to the peripheral device • Use CBPeripheralManager
- 159. Emulator App • Develop another iOS app as the alternative to the peripheral device • Use CBPeripheralManager • Easier for iOS engineers
- 163. =
- 164. Multi-Function Control • Single Tap • Double Tap • Long Press • Very Long Press =
- 165. Troubleshooting
- 166. Can’t find the peripheral Scan ?
- 167. Can’t connect Find
- 169. • Connection dropped
- 170. • Connection dropped • Can’t discover services or characteristics
- 171. • Connection dropped • Can’t discover services or characteristics • Fail to write
- 172. • Connection dropped • Can’t discover services or characteristics • Fail to write • Incorrect characteristic values
- 173. • Connection dropped • Can’t discover services or characteristics • Fail to write • Incorrect characteristic values • Incorrect behaviors in the background
- 174. • Connection dropped • Can’t discover services or characteristics • Fail to write • Incorrect characteristic values • Incorrect behaviors in the background • etc…
- 175. Identify which side the problem is on Is the problem on the central side or on the peripheral side? → Compare with another iOS app like ‘LightBlue’
- 176. Can’t find the peripheral • Scanning, but can’t find the peripheral device
- 177. Can’t find the peripheral • Scanning, but can’t find the peripheral device Scan
- 178. Can’t find the peripheral • Scanning, but can’t find the peripheral device Scan but ‘didDiscover’ method isn’t called
- 179. Can’t find the peripheral • Scan with another iOS app Scan
- 180. Can’t find the peripheral • Scan with another iOS app Scan Discovered peripherals
- 182. Can’t connect, etc. Connect Services & Characteristics
- 184. Bluetooth Explorer
- 185. Bluetooth Explorer An OS X app made by Apple
- 187. Low Energy Devices
- 188. Low Energy Devices Scan, Connect
- 189. Low Energy Devices Scan, Connect Details of services and characteristics
- 190. Low Energy Devices Scan, Connect Details of services and characteristics Write, Read, Register Notify (Subscribe)
- 191. func centralManager( central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(advertisementData) }
- 192. func centralManager( central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(advertisementData) } Filtered by iOS!
- 193. func centralManager( central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(advertisementData) } Filtered by iOS! → Can’t see all of the advertisement data
- 194. func centralManager( central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber!) { print(advertisementData) } Filtered by iOS! e.g. Can’t see the ‘Manufacture Data’ field of iBeacon → Can’t see all of the advertisement data
- 196. Not filtered → Can see the ‘Manufacture Data’ field of iBeacon
- 197. Packet Logger
- 198. Packet Logger An OS X app made by Apple
- 201. How to get
- 202. How to get
- 203. How to get Download ‘Hardware IO Tools for Xcode’
- 204. How to get Download ‘Hardware IO Tools for Xcode’
- 205. How to get Download ‘Hardware IO Tools for Xcode’
- 206. How to get Download ‘Hardware IO Tools for Xcode’
- 207. App Review
- 209. MSRP $13,995
- 210. Costing too much
- 211. Not enough devices when submitting
- 212. Videos for review
- 213. Videos for review • Show how the app works with the peripheral device
- 214. Videos for review • Show how the app works with the peripheral device • Not need to be cool!
- 216. • Shoot with iPhone
- 217. • Shoot with iPhone • Edit with iMovie
- 218. Recap • What is Bluetooth Low Energy? • Basics of Core Bluetooth with an actual product • Practical Core Bluetooth with specific examples - Defining GATT - Defining background behaviors - Testing without HW prototypes - Troubleshooting - App Review
- 219. 束：31mm 表 4 表 1 iOS×BLE Core Bluetooth プログラミング iOS×BLECoreBluetooth プ ロ グ ラ ミ ン グ 堤 修 一 松 村 礼 央 ＝ 著 堤修一×松村礼央＝著 Shuichi TSUTSUMI×Reo MATSUMURA iOS×BLE Core Bluetooth Programming iOS×BLE 定価：本体4,000円（税別） Resources • 500 pages about iOS x BLE • Japanese only
- 220. Resources • Getting Started with Bluetooth Low Energy - Covers large area of BLE • Core Bluetooth Programming Guide - Good to know the overview of Core Bluetooth • Core Bluetooth Framework Reference - Details of Core Bluetooth • Bluetooth Accessory Design Guidelines for Apple Products - For HW side, but helpful also for iOS engineers to know specs or limitations due to HW side such as connection intervals.
- 221. Resources • WWDC 2012 - Session 703 - Core Bluetooth 101 - Helpful to know about BLE • WWDC 2012 - Session 705 - Advanced Core Bluetooth - Connection interval, Caching, etc… • WWDC 2013 - Session 703 - Core Bluetooth - Retrieving peripherals, State preservation & restoration etc.. - Includes advanced and detailed information • Bluetooth Core Specification by Bluetooth SIG - The official specification / Total 2000 pages…
- 222. Thank you! Shuichi Tsutsumi - iOS Freelancer • Twitter: @shu223 • GitHub: shu223 • Blog: https://medium.com/@shu223/ • Email: shuichi0526@gmail.com