Devoxx 2015 - Building the Internet of Things with Eclipse IoT

1. Building the Internet of Things with Eclipse IoT Benjamin Cabé – Eclipse Foundation @kartben Devoxx France - April 10, 2015

2. Java for IoT? ● 9+ million Java developers ● Java 8 & embedded are fun ● Lots of IoT devices running on ARM ● Tooling

3. End-to-end IoT?

4. End-to-end IoT?

5. End-to-end IoT?

6. End-to-end IoT?

7. Talking to sensors? ● Pi4J – http://pi4j.com ○ Complete access to GPIOs/I2C/SPI ○ Very mature codebase, based on WiringPi ○ Support for popular shields (PiFace, Gertboard, …) ○ Lots of code samples

8. Talking to sensors? Gp o on o e p o = Gp oFa o . e Ins an e(); Gp oP nD a Ou pu p n = p o.p o s onD a Ou pu P n( 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();

9. Gateway

10. Gateway

11. Gateway

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

13. 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

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

15. 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, … http://eclipse.org/californium

16. import static org.eclipse.californium.core.coap.CoAP.ResponseCode.*; public class MyResource extends CoapResource { @Override public void handleGET(CoapExchange exchange) { exchange.respond("hello world"); // reply with 2.05 payload (text/plain) } @Override public void handlePOST(CoapExchange exchange) { exchange.accept(); // make it a separate response if (exchange.getRequestOptions() ...) { // do something specific to the request options } exchange.respond(CREATED); // reply with response code only (shortcut) } }

17. MQTT: Publish & Subscribe Sub KETTLE232/#Pub KETTLE232/temp Payload: 21°C Pub KETTLE232/temp Payload: 21°C BROKER

18. Eclipse Paho ● Open-source MQTT clients ● Pick your language! ○ Java ○ JavaScript ○ C/C++, Objective C ○ Go, Lua, Python, .NET, WinRT, … http://eclipse.org/paho

19. MqttClient c = new MqttClient("tcp://m2m.eclipse.org:1883", MqttClient.generateClientId()); mqttClient.setCallback(new MqttCallback() { @Override public void messageArrived(String topic, MqttMessage message) throws Exception { // process received message // ... } }); mqttClient.connect(); mqttClient.subscribe("mygateway/#");

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

21. Manage? ● Gateway itself ○ wireless modem, firewall, … ● Applications ○ Install/Uninstall software packages ○ Start/Stop applications ● Sensors ○ H/W abstraction layer

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

23. Installing Kura cd ~ sudo apt-get update wget https://s3.amazonaws.com/kura_downloads/raspbian/release/ 1.1.0/kura_1.1.0_raspberry-pi_armv6.deb sudo dpkg -i kura_1.1.0_raspberry-pi_armv6.deb sudo apt-get install -f sudo reboot

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

25. First steps with Kura

33. 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 ● And of course you can leverage a huge ecosystem of Java and OSGi libraries

34. Your typical Kura component ● Uses Modbus, CAN-Bus, etc. built-in device abstraction services ○ Or implement your own service

35. Your typical Kura component (2) • Uses Kura built-in transport services to talk to the cloud – TransportService – « raw » protocol – DataService – local storage, auto reconnect – CloudService – optimized binary payload, advanced device management

36. Your typical Kura component (3) • Implements ConfigurableComponent – Enables configuration from the UI – … as well as from the cloud

37. Your typical Kura component (4) • Bundled with other bundles/components in a deployment package – Zip file containing a Manifest & OSGi bundles • Can be deployed from Kura Web UI or over the air Read more: http://eclipse.github.io/kura/doc/kura-setup

38. End-user interaction ● JavaFX Charts ● Eclipse BIRT ● Smartphone app (e.g Android) ○ https://www.eclipse.org/paho/clients/android ● MQTT + WebSockets = ♡ ○ https://www.eclipse.org/paho/clients/js

39. Kura is awesome! Go download it now! http://eclipse.org/kura If you had to remember only 3 things... #1

40. Build your own greenhouse & follow the tutorial http://iot.eclipse.org/java/tutorial If you had to remember only 3 things... #2

41. Eclipse IoT is much more than Kura and Java! http://iot.eclipse.org/ If you had to remember only 3 things... #3

42. Get Involved! ● Open bugs / fix bugs ● Request new features ● Write articles, tutorials ● Participate on the mailing lists ● Propose your project!

43. Coming next?

44. Coming next? ● Device Management ○ LwM2M, LwM2M over MQTT, IPSO Smart Objects ● Security ○ TinyDTLS ● Open-source IoT server? ○ Several members interested in defining and implementing the OpenStack for IoT

45. Thank you! Questions? benjamin@eclipse.org @kartben http://iot.eclipse.org