Slides of my Alexa session at JavaOne 2017 Session description What if you’re eating and having a discussion about a certain topic? Searching on your phone would mean that your food gets cold. Or what if you’re lying on the couch without your phone and want to control the lights? The voice recognition service called Alexa can solve those issues. This presentation shows you how to integrate Alexa into your home automation setup with openHAB (used as an example). This enables you to control your lights and everything else with your voice. You can use Alexa with almost any software and hardware. Last but not least, the presentation shows you how to create your own skills in Java to add functionality to Alexa. The skills are deployed with Maven to AWS Lambda as a serverless application.

1. USE VOICE
RECOGNITION WITH
ALEXA TO CONTROL
YOUR HOME
J O H A N J A N S S E N , I N F O S U P P O RT
@ J O H A N J A N S S E N 4 2

3. CONTENT
• Internet ofThings
• Home automation
• Alexa
• openHAB
• Alexa skills
• Conclusion
• Questions

4. What’sThe Internet ofThings (IoT)

8. “The Infrastructure of the Information Society”
Global Standards Initiative on Internet ofThings (IoT-GSI)

9. What’s home automation?

11. What other things do we want to control?

12. DEMOTIME!

13. “Home automation is a subset of IoT”
Johan

14. Home automation challenges

22. DEMOTIME!

25. RASPBERRY PI
Official guide from Amazon
https://github.com/amzn/alexa-avs-raspberry-pi

26. COMPARISON
RASPBERRY PI
• Around $80-$90
• Raspberry Pi 3
• Speaker
• Microphone
• Power adapter
• Cables
ECHO DOT 2
• $50
• Adapter
• Dual band wifi
• Stereo (weak)
• Wake on speaking

31. Alexa for home automation

32. DEMOTIME!

33. OPENHAB

34. OPENHAB DASHBOARD

35. OPENHAB FUNCTIONALITY

41. my

42. DEMOTIME!

44. •Retrieve information
•Control devices
•Call webservice
•Order pizza!

45. ALEXA-HA SKILL

46. TWO TYPE OF SKILLS
•Custom skill
•Smart home skill

47. TALK TO ALEXA
Alexa ask/tell firstSkill hello
invocation name utterance

48. MAP UTTERANCE TO INTENT
MyFirstIntent hello
Intent utterance

49. DEPLOYING/RUNNING SKILLS
•AWS Lambda
–Java
–Node.js
–Python
•(Local) webservice

50. NORMAL AWS LAMBDA DEPLOYMENT

51. DEMOTIME!

54. NO ACCESS CONTROL
static {
System.setProperty("com.amazon.speech.speechlet.
servlet.disableRequestSignatureCheck", "true");
}

55. ACCESS CONTROL
private static final Set<String> supportedApplicationIds =
new HashSet<String>();
static {
supportedApplicationIds.add("amzn1.echo-sdk-ams.app.
[ see https://developer.amazon.com/ ]");
}

56. AWS LAMBDA AUTO DEPLOY

57. DEMOTIME!

63. GITHUB REPO’S
•Maven AWS Lambda integration
–https://github.com/johanjanssen/AlexaExamples
•Alexa Skills Kit Java
–https://github.com/amzn/alexa-skills-kit-java

64. IF YOU WANT A NEW FEATURE
•Use an existing skill
•Integrate with for instance IFTTT
•Create a custom skill

65. Disadvantages Alexa

73. Advantages Alexa

79. CONCLUSION
•Easy to integrate with other devices /
software
•Easy to program new features in Java
•You quickly get used to it
•Fun!

80. Johan Janssen, Info Support
@johanjanssen42