End-to-end IoT solutions with Java and the Eclipse IoT stack

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Marilynn Fields
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1 End-to-end IoT solutions with Java and the Eclipse IoT stack

2 IoT is Big

4 Open IoT Stack for Java

5 End-to-end IoT? Actuators/Sensors + Gateway + [ Cloud ] + User front-end

6 1. Sensors/Actuators Sense the physical environment Act on it

7 1. Sensors/Actuators Sense the physical environment Act on it That was easy, eh?

8 1. Sensors/Actuators Manipulate sysfs directly Use Pi4J to have full support of GPIO/I2C/SPI Device I/O API with Java or Java ME

9 Sensors/Actuators Pi4J Complete access to GPIOs/I2C/SPI Very mature codebase, based on WiringPi Support for popular shields (PiFace, Gertboard, ) Lots of code samples

10 Pi4J in action Gp o on o Gp op nd e p o a Ou pu Gp ofa p n o. e Ins an e(); p o.p o s ond Rasp P n.gpio_01, "M LED", P ns a e.high); Th ead.s eep(5000); p n. ow(); Th ead.s eep(5000); p n. o e(); p o.shu down(); a Ou pu P n(

11 Gateway

12 Gateway

13 Gateway

14 Gateway Connect sensors to the world Manage the hardware and software running at the edge

15 Connect? CoAP «HTTP over UDP» Expose your device as a resource to the Internet of Things MQTT Publish/Subscribe model More room for local processing

16 CoAP: The web-of-things /on /on /on /red /green /blue /mtbf /walk /hand/left/raise /eye/picture /engine/status /position /fuel /buttons /buttons/1/push /bat-level /CO2 /noise /lights/on

17 Eclipse Californium Focus on scalability and usability To be used in IoT cloud servers or M2M/IoT devices running Java Includes DTLS implementation (Scandium), HTTP/CoAP bridge, Plugtests,

18 Californium 101 oapse e, oapresou e, oapex han e 1. Implement custom resources (extend oapresou e) 2. Add resources to the CoAP server 3. Start the server

19 Californium 101 mpo s a pub o.e pse. a o n um. o e. oap. oap.response ode.*; // sho ass M Resou e ex ends e pub e { de o d hand eget( oapex han e ex han e) { ex han e. espond("he o wo d"); // ep w h 2.05 pa oad ( ex /p a n) e pub de o d hand epost( oapex han e ex han e) { ex han e.a ep (); // ma e (ex han e. e Reques Op // do some h n spe a sepa a e esponse ons()...) { o he eques op ons } ex han e. espond( REATED); // } } ep w h esponse ode on (sho u ) u s

espond("he o wo d"); // ep w h 2.05 pa oad ( ex /p a n) } @O e pub de o d hand epost( oapex han e ex han e) { ex han e.

20 MQTT: Publish & Subscribe Pu b mp e /t C E : TL ad T o KE yl b Pa Pu BROKER KE Pa TTL yl E2 oa 32 d: /t 21 emp C Su b KE TT LE 23 2/ #

21 Eclipse Paho Open-source MQTT clients Pick your language! Java JavaScript C/C++, Objective C Go, Lua, Python,.NET, WinRT,

22 Paho 101 (Java) Mq en new Mq en (" p:// o.e Mq mq e pub a ba (new Mq a ba pse.o :1883", en. ene a e en Id()); () { de o d messa ea h ows Ex ep on { // p o ess e e ed(s n ed messa e //... } }); mq en. onne (); mq en.subs be("m a ewa / "); op, Mq Messa e messa e)

23 MQTT brokers Eclipse Mosquitto C implementation Scalable (1000 clients == 3MB RAM) Eclipse Moquette Java implementation Based on Netty and LMAX disruptor

24 Manage? Gateway itself wireless modem, firewall, Applications Install/Uninstall software packages Start/Stop applications Sensors H/W abstraction layer

25 App 1 Applications App 2... App n Connectivity and Delivery Network Configuration Network Management Gateway Basic Services Device Abstraction OSGi Application Container Java VM Linux Hardware Field Protocols Administration GUI Operation & Management Eclipse Kura

26 Installing Kura d ~ sudo ap - e upda e w e h ps://s3.amazonaws. om/ u a_down oads/ aspb an/ e ease/1.1.0/ \ u a_1.1.0_ aspbe -p _a m 6.deb sudo dp - sudo ap - e sudo eboo u a_1.1.0_ aspbe ns a - -p _a m 6.deb

27 First steps with Kura Network management Cellular Modem, WiFi Firewall NAT OSGi and system administration IoT server communication settings

28 Kura API OSGi services that you can re-use in your own components o Se e Da ase e, oudse e p ose e (AES, base64, SHA-1) Pos onse e (geolocation) and many others

29 Demo time!

30 Practical example: Greenhouse A Senso Se for GPIO/I2C e implementation leveraging Pi4J A configurable G eenhousepub she component that: consumes a Senso Se e (GPIO manipulation) consumes a Da ase e (MQTT communication) exposes a Senso han edl s ene (be notified of external GPIO updates) exposes configuration metadata (Web UI config)

31 Talk is cheap Show me the code!

32 And how about CoAP? Californium can easily be embedded in a Kura bundle Another OSGi component can: consume the Senso Se expose CoAP resources You need to open port 5683 in Kura! e

33 End-user interaction JavaFX Charts Eclipse BIRT Smartphone app (e.g Android) MQTT + WebSockets =

34 If you had to remember only 3 things... #1 Kura is awesome! Go download it now!

35 If you had to remember only 3 things... #2 Build your own greenhouse & follow the tutorial

36 If you had to remember only 3 things... #3 Eclipse Open IoT Stack for Java is much more than Kura

37 Get Involved!

38 Thank you!

Open Source Internet of Things 101

Open Source Internet of Things 101 Benjamin Cabé @kartben March 8, 2016 Eclipse Foundation Made available under the EPL v1.0 IoT? In reality... In reality... Internet of Silos fragmentation complexity