0
BUILDING
THE INTERNET OF THINGS
WITH ECLIPSE IOT
Benjamin Cabé, Eclipse Foundation
@kartben
"Kortrijk Begijnhof and Our La...
M2M?
IoT?
❝Technology that supports
wired or wireless
communication
between devices
http://www.flickr.com/photos/brunauto/5687363705
fragmentation
lock-in
http://www.flickr.com/photos/photosightfaces/8152791780/
http://www.flickr.com/photos/90514086@N00/952121271/ http://www.flickr.com/photos/cyberslayer/952121271
complexity
Protocols
Tools
Frameworks
Services
 Hand	
  by	
  Castor	
  &	
  Pollux	
  from	
  The	
  Noun	
  Project	
  
AT FIRST THEY WERE THREE…
 Hand	
  by	
  Castor	
  &	
  Pollux	
  from	
  The	
  Noun	
  Project	
  
AT FIRST THEY WERE THREE…
 Hand	
  by	
  Castor	
  &	
  Pollux	
  from	
  The	
  Noun	
  Project	
  
AT FIRST THEY WERE THREE…
 Hand	
  by	
  Castor	
  &	
  Pollux	
  from	
  The	
  Noun	
  Project	
  
AT FIRST THEY WERE THREE…
Paho provides client implementations
of the MQTT protocol.
Mihini is an embedded Lua runtime
providing HW abstraction and ...
Eclipse SCADA is a complete Java/
OSGi-based SCADA system
(communication, monitoring, GUI, …)
Kura is a Java/OSGi-based M2...
Ponte bridges M2M/IoT (MQTT,
CoAP) protocols to the Web. 
SmartHome provides a complete set
of services for home automatio...
Californium is an implementation
of the CoAP protocol written in
Java. Includes DTLS for security.

Wakaama is an implemen...
Concierge is a lightweight
implementation of OSGi Core R5.
Your project?
J
Concierge
We need to talk! ;-)
I often get asked…
WHAT IS ZE BEST
LANGUAGE FOR
IOT?!?
I often get asked…
ANSWER: It depends! J
For embedded systems…	
  
Codevs.Configuration
Constrained micro-controllers vs. Smart gateways
C
 J...
ANSWER: It depends! J
Infrastructurevs.App.development
Communication enablement vs. Information systems
On the server sid...
BUILDING BLOCKS FOR IOT
BUILDING BLOCKS FOR IOT
… for building what?
 Cloud	
  by	
  Andrew	
  Lynne	
  from	
  The	
  Noun	
  Project	
  
	
  Thermometer	
  by	
  Lemon	
  Liu	
  from	
  The...
MQTT?
MQTT?
M is for Messaging… (mmmmaybe!) 
Q is not for Queue ☺︎
Publish/Subscribe protocol
Lightweight (bandwidth, battery, …)
21.3
21.3
MQTT history
•  … it’s not new!
•  Invented in 1999 (Andy Stanford-
Clark, Arlen Nipper)
•  Royalty-free since 2010
•  Bei...
Neat MQTT features
•  Wildcards
•  Quality of Service
•  Last Will & Testament
•  Retained Messages
MQTT Features | Wildcards
• The number sign (#) is a wildcard character
that matches any number of levels within a
topic.
...
MQTT Features | QoS
•  QoS flag allows to control the level of
assurance for delivery you want when
publishing a message to...
MQTT Features | QoS 0
•  QoS flag allows to control the level of
assurance for delivery you want when
publishing a message ...
MQTT Features | QoS 1
•  QoS flag allows to control the level of
assurance for delivery you want when
publishing a message ...
MQTT Features | QoS 2
•  QoS flag allows to control the level of
assurance for delivery you want when
publishing a message ...
MQTT Features | Last Will & Testament
•  IoT devices can come & go on the
network quite often and in a very
unpredictable ...
MQTT Features | Retained messages
•  The Retained flag allows a published
message to be stored on the broker, so
as possibl...
Real world example… and demo!
21.3
21.3
Is the MQTT API that simple?
Is the MQTT API that simple?
MqttClient mqttClient = new MqttClient

	 	 	 	(

	 	 	 	 "tcp://iot.eclipse.org:1883",

	 	 ...
Is the MQTT API that simple?
mqttClient.setCallback(new MqttCallback() {	
	@Override	
	public void messageArrived(String t...
Data viz. w/ MQTT over Websockets
•  Rickshaw is a JavaScript toolkit for
creating interactive time series graphs
•  It’s ...
 Cloud	
  by	
  Andrew	
  Lynne	
  from	
  The	
  Noun	
  Project	
  
	
  Thermometer	
  by	
  Lemon	
  Liu	
  from	
  The...
CoAP: Constrained Application Protocol
•  Internet Eng. Task Force standard for
the Internet of Things.
•  Started in 2010...
Co: Constrained
•  Simple to encode: targets 8 bits MCU.
•  UDP based, targets low power IP
networks.
•  Two level of QoS:...
CoAP: RESTful things!
•  REST paradigm for things:
– URI: coap://hostname/lamps/12/status
•  HTTP like verbs:
– GET for re...
Co: Constrained
.0 1 2 3
.0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-...
CoAP: Discoverability
GET coap://hostname/.well-known/core
à Provides a list of all
supported resources!
CoAP: Security
•  DTLS (TLS on UDP Datagrams)
•  Pre-shared key or not
•  DTLS is not really light :(
Device management
Secure, monitor, manage fleet of
deployed devices.
•  Configure the device.
•  Update the firmware (and ma...
Lightweight M2M
•  A new Open Mobile Alliance standard
•  An OMA-DM successor for M2M
targets
Lightweight M2M: CoAP
•  Built on top of CoAP:
•  Really lighter than OMA-DM or
TRS-069.
LWM2M features
•  Firmware upgrades (in band or thru
HTTP)
•  Device monitoring and configuration
•  Server provisioning (b...
LWM2M SMS
•  SMS can be used for waking-up the
device.
•  Or for any GET/POST/PUT!
LWM2M: standard objects
– Device
– Server
– Connectivity monitoring
– Connectivity statistics
– Location
– Firmware
The ob...
LWM2M the URLs
URLs:
/{object}/{instance}/{resource

Ex: 
/6/0 à whole position object (binary TLV)




x 
/6/0/2 
à onl...
DEMO
•  Copper, a Firefox plug-in for CoAP
•  Eclipse Wakaama, a LWM2M client
•  Leshan, a LWM2M server
 Cloud	
  by	
  Andrew	
  Lynne	
  from	
  The	
  Noun	
  Project	
  
	
  Thermometer	
  by	
  Lemon	
  Liu	
  from	
  The...
Android UI
X10
Serial
 …
Bluetooth
Building… HOME AUTOMATION
In a nutshell
•  MQTT is a very versatile protocol for
building your IoT solution from the
ground up. You should try it!
•...
Join us at EclipseCon France!
http://eclipsecon.org/france2014
http://iot.eclipse.org
http://iot.eclipse.org 

<benjamin@eclipse.org>
@kartben 
Thanks! Questions?
Building the Internet of Things with Eclipse IoT - IoTBE meetup
Building the Internet of Things with Eclipse IoT - IoTBE meetup
Building the Internet of Things with Eclipse IoT - IoTBE meetup
Building the Internet of Things with Eclipse IoT - IoTBE meetup
Building the Internet of Things with Eclipse IoT - IoTBE meetup
Building the Internet of Things with Eclipse IoT - IoTBE meetup
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Building the Internet of Things with Eclipse IoT - IoTBE meetup

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The slides from my session at the IoTBE meetup
http://www.meetup.com/intom2m/events/168897132/

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Transcript of "Building the Internet of Things with Eclipse IoT - IoTBE meetup"

  1. 1. BUILDING THE INTERNET OF THINGS WITH ECLIPSE IOT Benjamin Cabé, Eclipse Foundation @kartben "Kortrijk Begijnhof and Our Lady's" by Michael O'Donnabhain
  2. 2. M2M? IoT?
  3. 3. ❝Technology that supports wired or wireless communication between devices
  4. 4. http://www.flickr.com/photos/brunauto/5687363705 fragmentation
  5. 5. lock-in http://www.flickr.com/photos/photosightfaces/8152791780/
  6. 6. http://www.flickr.com/photos/90514086@N00/952121271/ http://www.flickr.com/photos/cyberslayer/952121271 complexity
  7. 7. Protocols Tools Frameworks Services
  8. 8.  Hand  by  Castor  &  Pollux  from  The  Noun  Project   AT FIRST THEY WERE THREE…
  9. 9.  Hand  by  Castor  &  Pollux  from  The  Noun  Project   AT FIRST THEY WERE THREE…
  10. 10.  Hand  by  Castor  &  Pollux  from  The  Noun  Project   AT FIRST THEY WERE THREE…
  11. 11.  Hand  by  Castor  &  Pollux  from  The  Noun  Project   AT FIRST THEY WERE THREE…
  12. 12. Paho provides client implementations of the MQTT protocol. Mihini is an embedded Lua runtime providing HW abstraction and other services. Koneki provides tools for embedded Lua developers.
  13. 13. Eclipse SCADA is a complete Java/ OSGi-based SCADA system (communication, monitoring, GUI, …) Kura is a Java/OSGi-based M2M container for gateways. Has support for Modbus, CANbus, MQTT, … Mosquitto is a lightweight server implementation of the MQTT and MQTT-SN protocols, written in C.
  14. 14. Ponte bridges M2M/IoT (MQTT, CoAP) protocols to the Web. SmartHome provides a complete set of services for home automation gateways. OM2M implements the ETSI M2M standard. (code pending)
  15. 15. Californium is an implementation of the CoAP protocol written in Java. Includes DTLS for security. Wakaama is an implementation of LWM2M written in C. Krikkit is a rules system for programming edge devices just like you’d configure a router Wakaama Krikkit (code pending) (code pending) (code pending)
  16. 16. Concierge is a lightweight implementation of OSGi Core R5. Your project? J Concierge We need to talk! ;-)
  17. 17. I often get asked…
  18. 18. WHAT IS ZE BEST LANGUAGE FOR IOT?!? I often get asked…
  19. 19. ANSWER: It depends! J For embedded systems…   Codevs.Configuration Constrained micro-controllers vs. Smart gateways C Javascript Lua Java/OSGi
  20. 20. ANSWER: It depends! J Infrastructurevs.App.development Communication enablement vs. Information systems On the server side…   C Javascript Java/OSGi
  21. 21. BUILDING BLOCKS FOR IOT
  22. 22. BUILDING BLOCKS FOR IOT … for building what?
  23. 23.  Cloud  by  Andrew  Lynne  from  The  Noun  Project    Thermometer  by  Lemon  Liu  from  The  Noun  Project    Fluorescent  Light  Bulb  by  Dmitriy  Lagunov  from  The  Noun  Project    Water  by  Gilad  Fried  from  The  Noun  Project   MQTT Network Mosquitto broker Building… SENSOR NETWORKS
  24. 24. MQTT?
  25. 25. MQTT? M is for Messaging… (mmmmaybe!) Q is not for Queue ☺︎ Publish/Subscribe protocol Lightweight (bandwidth, battery, …)
  26. 26. 21.3 21.3
  27. 27. MQTT history •  … it’s not new! •  Invented in 1999 (Andy Stanford- Clark, Arlen Nipper) •  Royalty-free since 2010 •  Being standardized at OASIS since 2013
  28. 28. Neat MQTT features •  Wildcards •  Quality of Service •  Last Will & Testament •  Retained Messages
  29. 29. MQTT Features | Wildcards • The number sign (#) is a wildcard character that matches any number of levels within a topic. • The plus sign (+) is a wildcard character that matches only one topic level Examples mygreenhouse/sensors/# +/sensors/temperature
  30. 30. MQTT Features | QoS •  QoS flag allows to control the level of assurance for delivery you want when publishing a message to the broker
  31. 31. MQTT Features | QoS 0 •  QoS flag allows to control the level of assurance for delivery you want when publishing a message to the broker •  A message published with QoS=0 will be received at most once (“fire & forget”) by subscribed clients
  32. 32. MQTT Features | QoS 1 •  QoS flag allows to control the level of assurance for delivery you want when publishing a message to the broker •  A message published with QoS=1 will be received at least once (acknowledged delivery) by subscribed clients
  33. 33. MQTT Features | QoS 2 •  QoS flag allows to control the level of assurance for delivery you want when publishing a message to the broker •  A message published with QoS=2 will be received exactly once (assured delivery) by subscribed clients
  34. 34. MQTT Features | Last Will & Testament •  IoT devices can come & go on the network quite often and in a very unpredictable way •  Last Will & Testament allows to notify interested parties to an abnormal disconnection of a client •  The Last Will & Testament (if any) is part of the initial connection message
  35. 35. MQTT Features | Retained messages •  The Retained flag allows a published message to be stored on the broker, so as possible receivers can subscribe later and still receive the message
  36. 36. Real world example… and demo!
  37. 37. 21.3 21.3
  38. 38. Is the MQTT API that simple?
  39. 39. Is the MQTT API that simple? MqttClient mqttClient = new MqttClient
 (
 "tcp://iot.eclipse.org:1883",
 MqttClient.generateClientId()
 ); mqttClient.setCallback(…); mqttClient.connect(); mqttClient.subscribe("myGreenhouse/#"); // the rest of your app
  40. 40. Is the MQTT API that simple? mqttClient.setCallback(new MqttCallback() { @Override public void messageArrived(String topic, 
 MqttMessage message) throws Exception { // process received message
 // e.g. display temperature value } // ... }); Callback code:
  41. 41. Data viz. w/ MQTT over Websockets •  Rickshaw is a JavaScript toolkit for creating interactive time series graphs •  It’s built on top of d3.js •  MQTT over Websockets makes it very easy to feed data into Rickshaw datasets… perfect for IoT! – More at http://code.shutterstock.com/rickshaw, lots of examples to get started
  42. 42.  Cloud  by  Andrew  Lynne  from  The  Noun  Project    Thermometer  by  Lemon  Liu  from  The  Noun  Project    Fluorescent  Light  Bulb  by  Dmitriy  Lagunov  from  The  Noun  Project    Water  by  Gilad  Fried  from  The  Noun  Project   MQTT Network Ponte broker CoAP Network Building… SENSOR NETWORKS (2)
  43. 43. CoAP: Constrained Application Protocol •  Internet Eng. Task Force standard for the Internet of Things. •  Started in 2010! •  Draft-18 is the final one.
  44. 44. Co: Constrained •  Simple to encode: targets 8 bits MCU. •  UDP based, targets low power IP networks. •  Two level of QoS: confirmable message or not. •  Simple observation mechanism.
  45. 45. CoAP: RESTful things! •  REST paradigm for things: – URI: coap://hostname/lamps/12/status •  HTTP like verbs: – GET for reads – POST, PUT, DELETE for mutation – … but in a compact binary datagram.
  46. 46. Co: Constrained .0 1 2 3 .0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |Ver| T | TKL | Code | Message ID | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Token (if any, TKL bytes) ... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Options (if any) ... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |1 1 1 1 1 1 1 1| Payload (if any) ... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  47. 47. CoAP: Discoverability GET coap://hostname/.well-known/core à Provides a list of all supported resources!
  48. 48. CoAP: Security •  DTLS (TLS on UDP Datagrams) •  Pre-shared key or not •  DTLS is not really light :(
  49. 49. Device management Secure, monitor, manage fleet of deployed devices. •  Configure the device. •  Update the firmware (and maybe the app) •  Monitor and gather connectivity statistics
  50. 50. Lightweight M2M •  A new Open Mobile Alliance standard •  An OMA-DM successor for M2M targets
  51. 51. Lightweight M2M: CoAP •  Built on top of CoAP: •  Really lighter than OMA-DM or TRS-069.
  52. 52. LWM2M features •  Firmware upgrades (in band or thru HTTP) •  Device monitoring and configuration •  Server provisioning (bootstraping)
  53. 53. LWM2M SMS •  SMS can be used for waking-up the device. •  Or for any GET/POST/PUT!
  54. 54. LWM2M: standard objects – Device – Server – Connectivity monitoring – Connectivity statistics – Location – Firmware The objects have a numerical identifier (saves bytes…)
  55. 55. LWM2M the URLs URLs: /{object}/{instance}/{resource Ex: /6/0 à whole position object (binary TLV) x /6/0/2 à only the altitude value
  56. 56. DEMO •  Copper, a Firefox plug-in for CoAP •  Eclipse Wakaama, a LWM2M client •  Leshan, a LWM2M server
  57. 57.  Cloud  by  Andrew  Lynne  from  The  Noun  Project    Thermometer  by  Lemon  Liu  from  The  Noun  Project    Fluorescent  Light  Bulb  by  Dmitriy  Lagunov  from  The  Noun  Project    Water  by  Gilad  Fried  from  The  Noun  Project   CoAP Network LWM2M server (e.g. Leshan) wakaama wakaama wakaama Building… DEVICE MANAGEMENT battery level avail. memory … firmware reboot …
  58. 58. Android UI X10 Serial … Bluetooth Building… HOME AUTOMATION
  59. 59. In a nutshell •  MQTT is a very versatile protocol for building your IoT solution from the ground up. You should try it! •  Eclipse IoT has lots of projects, from basic building blocks to more complete solutions •  We have cool Java projects… among many others! J
  60. 60. Join us at EclipseCon France! http://eclipsecon.org/france2014
  61. 61. http://iot.eclipse.org
  62. 62. http://iot.eclipse.org <benjamin@eclipse.org> @kartben Thanks! Questions?
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