This document discusses using serverless architectures with AWS services like AWS IoT, Lambda, DynamoDB, and S3 to build IoT applications without having to manage servers. It provides examples of how to connect devices to AWS IoT and trigger AWS Lambda functions in response to device events. These functions can then interact with other AWS services like DynamoDB, S3, and external APIs to implement applications like counting item usage from an IoT button and storing the data in DynamoDB, or starting a device when the button is pressed by invoking an external API via Lambda. The document also provides guidance on setting up a Raspberry Pi with sensors for local IoT development and connecting devices to AWS IoT.

1. Building better IoT
Applications without Servers
Ian Massingham
Technology Evangelist, AWS
IanMmmm

2. Development,
It’s fun

3. What’s hard
(and probably not fun)
about running applications?

4. Deployment

5. Operations

6. Scaling

7. Security

8. Cost Optimisation

9. Lifecycle Management

10. Why Serverless?

11. It helps to solve a lot
of these issues

12. One implementation:
AWS Lambda
(plus a few other bits & pieces)

13. How do you apply these
techniques to IoT?

14. Before we get to that

15. Other problems you
need to solve

16. Device connectivity.
It might be intermittent

17. Authentication &
Authorisation

18. Device Registration

19. Security &
cryptographic materials handling

20. Deploying/scaling/updating
your Business/App Logic

21. Persisting Device Data
(with the right characteristics)

22. (Predictive) Analytics/Visualisation

23. Building on platforms helps

24. AWS IoT

25. So don’t build a platform, unless
you’re building a platform. In
which case, fine, build a platform.

26. Building ‘Hello World’
(for IoT Developers)

28. Turns out,
developers are creative

29. Sassy Ping Pong
Score Keeper
Source: https://www.hackster.io/youngd/ping-pong-showdown-eabaed

30. Slack-powered
Doorbell
Source:
www.theatlantic.com/notes/2016/07/make-
every-week-2-a-silent-slack-powered-doorbell/
490880/

31. Source: http://www.andrewmcgill.me/2016/08/19/make-every-week-sweetgreen-salad-button.html
Emergency
Sweet Green Ordering

32. Push a button to get directions
to the right meal within your
budget. (Integrate time of day,
weather, Google Directions,
Yelp, and Stripe)
Source: https://medium.com/@_adeel/nerding-out-with-the-amazon-iot-
button-84a6e14b6b28#.ekd5hsnez

33. How does it work?
Invoke a Lambda function
Put object in an S3 bucket
Insert, Update, Read from a
DynamoDB table
Publish to an SNS Topic
or Endpoint
Publish to a Kinesis stream
Kinesis Firehose > Redshift
Republish to AWS IoT
AWS IoT

34. All with no servers,
of course

35. But wait, I live in the UK and I
want to do this. Right now!

36. HARDWAREYOU WILL(& MIGHT) NEED
• A Raspberry Pi
• Electronics Kit
• Try the SunFounder 37 modules Sensor Kit v2.0 for
Raspberry Pi 3, 2, Model B+ with 40-Pin GPIO Extension
Board & Jump Wires
• http://www.amazon.co.uk/dp/B014PF05ZA
• Example tutorial
• Raspberry Pi Sense Hat (optional fun)
• https://www.raspberrypi.org/products/sense-hat/

37. SETTING UPFOR GPIO/SENSE HAT
Your own electronics/sensor build
C (for embedded C)
http://wiringpi.com
Python Wrapper Module for WiringPI
https://github.com/WiringPi/WiringPi-Python
For the Sense Hat
Python Module
https://github.com/RPi-Distro/python-sense-hat

38. SETTING UPFORAWS IOT
Use the AWS Console to create your device
Download the required crypto materials & save the C header file contents with
your endpoint, cert, and key details
Download & set up your chosen AWS IoT SDK
Get them at : https://aws.amazon.com/iot/sdk/
Building the C SDK on the Raspberry Pi requires the CppUTest library from:
https://github.com/cpputest/cpputest/releases/tag/v3.6
Get started with the sample applications that come with the AWS SDKs

39. EXAMPLES & DEMOS
Emulating the AWS IoT Button (C++)
https://github.com/ianmas-aws/iot-button-emulator
Controlling the Sense Hat via AWS IoT Device Shadow (Python)
https://github.com/ianmas-aws/PiPyIoT

41. Go Build, Have Fun
Ian Massingham
Technology Evangelist, AWS
IanMmmm

42. 1.

43. 2.

44. 2.

45. 3.

46. 4.

47. Alert Someone:AWS IoTtoAWS Lambda to SNS
Lambda Function
AWS IoT
Rules Engine
PolicyPrivate Key
& Certificate
Button
Rule
SDK
AWS IoT
AWS Services
Execution
Role
Policy
SNS Topic
PermissionAction
SNS Topic Subscription
Rule: “Select * from ‘iotbutton/+’
Event
Source
Function
SMS or Email

48. Count items or Track Usage:AWS IoTto DynamoDB to Dashboard
DynamoDB
Rules Engine
Dashboard
S3 Website
Lambda Function
PolicyPrivate Key
& Certificate
Button
Rule
SDK
AWS IoT
AWS Services
Execution
Role
PolicyPermissionAction
Rule: “Select * from ‘iotbutton/+’
Event
Source
FunctionDynamoDB API Gateway

49. Start or Stop Something : AWS IoTtoAWS Lambda to an External
Endpoint
Lambda Function
Rules Engine
PolicyPrivate Key
& Certificate
Thing/Device
Rule
SDK
AWS IoT AWS Services
Execution
Role
Policy
External Endpoint
Permission
Rule: Select * from ‘iotbutton/+’
Action
External
API
LifX API