The 5th session of LINE TAIWAN TECHPULSE 2018

2. Kevin Luo
LINE - Application Analyst

3. Agenda • Why LINE Things
• Service Architecture
• LINE Things LIFF BLE

4. LINE THINGS
SHOWCASE

5. WHY LINE THINGS

6. EVERYONE IS USING LINE

7. CURRENT IoT

8. More devices more Apps
Different protocols to connect to your devices
Complicated processes and ways to setup
HASSLE & CHAOS FOR USERS NOW

9. UI and device management
Hard to manage and use devices
Infrequent usage
BAD EXPERIENCE

10. WITH LINE THINGS

11. All the linked devices in One App - LINE
Hassle free, easy to setup
Interact with devices use through CHAT or WEBVIEW
BENEFITS FOR USERS

12. No more app to develop and to market
Just use WEB technologies
Easy to integrate with current web services
BENEFITS FOR SERVICE PROVIDERS AND
DEVELOPERS

13. HOW WE DO IT

14. Online Devices
direct internet connection
Offline Devices
no internet connection
DEVICES SUPPORT
● Wearable type devices
● Home appliance
● Bluetooth(BLE) devices
● Home gateway devices
● Wifi enabled devices
● Devices connect through
server

15. OVERVIEW
LINE THINGS
Service Management
Event Delivery
Authorization
Authentication
API’s
LINE APP
Communication
UI/UX
BLE
SERVICES
Communication
UI/UX
BLE
OFFLINE Devices ONLINE Devices

16. OFFLINE DEVICES
LINE THINGSLINE APP SERVICES
OFFLINE Devices
LINE App will proxy device events
Services can directly use web API’s to communicate with devices
Communicate With BLE
Events Events
Webview Data Processing
Data Delivery
CP Server

17. ONLINE DEVICES
LINE THINGSLINE APP
SERVICES
ONLINE Devices
Online devices can communicate directly with LINE things
CP side can proxy events and API’s for online devices
Device
Events
Events
API’s
Data Delivery
CP Server
RESTful
API

18. ONLINE DEVICES USE CASES

19. Remote
Control

20. Door
Opened
Alarm

21. ONLINE DEVICES USE CASES
Messaging API
Your
Servers
LINE
Servers
LINE
App
Devices

22. OFFLINE DEVICES USE CASES

23. OFFLINE DEVICES USE
BLE- Bluetooth Low Energy

24. No need to create backend APP for devices
No need for SIM or WIFI module
Devices do not need internet connection
ADVANTAGES OF BLE

25. WE HAD - LINE BEACON

26. You can send messages
when your customers
enter your store

27. WE NEED MORE

28. Bi-direction communication
Support for almost all BLE devices
BLE communication without user interaction
OUR NEW CHALLENGES

29. LINE THINGS LIFF BLE
Devices Messaging API
LIFF BLE
Your Servers
Your LIFF
App
LINE
Servers
LINE
App

30. Device link - Manage devices
LIFF SDK with BLE plugin
Automated BLE(Bluetooth Low Energy) communication (coming in 2019)
LINE THINGS FEATURES

31. LIFF - APPLICATION

33. DEVICE LINK & LIFF BLE

34. HOW DOES LIFF BLE WORK
Devices
LIFF SDK
(BLE plugin)
BLE Native
Component
LIFF
app

35. const device = await liff.bluetooth.requestDevice();
const gatt = await device.gatt.connect();
const service = await gatt.getPrimaryService(
'E625601E-9E55-4597-A598-76018A0D293D'
);
const characteristic = await service.getCharacteristic(
'26E2B12B-85F0-4F3F-9FDD-91D114270E6E'
);
characteristic.addEventListener('characteristicvaluechanged', (e) =>
{ console.log('value changed to:' + e.target.value); });
IMPLEMENTATION

36. CONNECTION PROCESS
Scanning
LINE App
Advertising
Device Connect

37. const device = await liff.bluetooth.requestDevice();
const gatt = await device.gatt.connect();
const service = await gatt.getPrimaryService(
'E625601E-9E55-4597-A598-76018A0D293D'
);
const characteristic = await service.getCharacteristic(
'26E2B12B-85F0-4F3F-9FDD-91D114270E6E'
);
characteristic.addEventListener('characteristicvaluechanged', (e) =>
{ console.log('value changed to:' + e.target.value); });
CONNECTION PROCESS

38. DATA ACCESS
Device LINE App
Read
LIFF BLE
Device
Device
LINE App
LINE App
Notify
Write

39. const device = await liff.bluetooth.requestDevice();
const gatt = await device.gatt.connect();
const service = await gatt.getPrimaryService(
'E625601E-9E55-4597-A598-76018A0D293D'
);
const characteristic = await service.getCharacteristic(
'26E2B12B-85F0-4F3F-9FDD-91D114270E6E'
);
characteristic.addEventListener('characteristicvaluechanged', (e)
DATA ACCESS

40. const device = await liff.bluetooth.requestDevice();
const gatt = await device.gatt.connect();
const service = await gatt.getPrimaryService(
'E625601E-9E55-4597-A598-76018A0D293D'
);
const characteristic = await service.getCharacteristic(
'26E2B12B-85F0-4F3F-9FDD-91D114270E6E'
);
const value = await characteristic.readValue();
READ

41. const device = await liff.bluetooth.requestDevice();
const gatt = await device.gatt.connect();
const service = await gatt.getPrimaryService(
'E625601E-9E55-4597-A598-76018A0D293D'
);
const characteristic = await service.getCharacteristic(
'26E2B12B-85F0-4F3F-9FDD-91D114270E6E'
);
await characteristic.writeValue(
WRITE

42. const device = await liff.bluetooth.requestDevice();
const gatt = await device.gatt.connect();
const service = await gatt.getPrimaryService(
'E625601E-9E55-4597-A598-76018A0D293D'
);
const characteristic = await service.getCharacteristic(
'26E2B12B-85F0-4F3F-9FDD-91D114270E6E'
);
characteristic.addEventListener('characteristicvaluechanged', (e) => {
console.log('value changed to:' + e.target.value); }
NOTIFY

43. AUTOMATED
BLE COMMUNICATION
USE CASE

45. Easy to implement
Free to try
Easy to share demo app
ADVANTAGES OF LINE THINGS

46. LET’S MAKE SOMETHING

47. https://developers.line.biz/en/docs/line-things/
LINE DEVELOPERS

48. https://github.com/line/line-things-starter
SAMPLE CODES

49. https://engineering.linecorp.com/en/blog/line-things-developer-trial/
BLOG - HOW TO 101

50. THANK YOU