This document discusses the Internet of Things (IoT) for average developers. It defines the IoT as hardware connected to the internet. It explains that the IoT combines data center and embedded development by connecting various hardware devices. It describes key aspects of IoT architecture including communication methods like messaging protocols and challenges of IoT adoption such as managing distributed devices on unreliable networks with constrained resources that must survive varied environmental conditions.

1. Brought to you by Henryk Konsek
The Internet of Things
for mere mortals

2. Henryk Konsek
@hekonsek
- engineer at Red Hat
- open source
contributor
- focused on the IoT

3. What does the Internet Of Things mean
for an average developer?
This talk

4. - What is the Internet Of Things?
- Data center vs embeded
- Architecture
- Communication
- The dark corners of the IoT adoption

5. What is the
Internet Of Things?

6. Hardware. Connected.
The Internet Of Things

7. Buzzword?

8. IBM net income in 2014 was 12 billion.
Buzzword?

9. Comarch IoT Labs
Buzzword?

10. Red Hat IoT pays my bills ;) .
Buzzword?

11. Many existing IT companies would like to join the party.
The Internet Of Things = $$$

12. In drones?
Where is the IoT money?

13. In hipster startups?
Where is the IoT money?

14. In the Raspberry Pi?
Where is the IoT money?

15. Industry.
IoT money

16. Army & intelligence.
IoT money

17. Automotive.
IoT money

18. Assets management.
IoT money

19. Smart cities.
IoT money

20. Smart home.
IoT money

21. Data center vs embedded

22. Data center vs embedded
Enterprise software developers:
● software for a data center
● unified target platform
● high level of abstraction

23. Data center vs embedded
Embedded software developers:
● software for various hardware devices
● different target platforms
● low level of abstraction

24. IoT = data center + embedded
IoT consolidates data center and embedded worlds.

25. Raspberry PI
The perfect example of the embedded and data center marriage.

26. IoT architecture

27. Data center systems in a nutshell

28. IoT architecture is a superset of a data center architecture.
IoT architecture

29. Synchronous communication, usually via HTTP.
Communication in data center systems

30. How these new elements communicate?
Communication in IoT systems

31. Communication in the IoT

32. IoT systems are usually messaging-based.
Messaging
● asynchronous
● one-way communication
● many, small messages

33. - WiFi
- BLE (Bluetooth Low Energy)
- ZigBee
- Z-Wave
Field IoT messaging

34. - small payloads (i.e. GSM and battery friendly)
- works well with the unreliable networks
- devices can talk MQTT
Data center IoT messaging

35. - interoperable
- mature
- scales like crazy
Data center IoT messaging

36. HTTP is still the most popular “messaging” protocol for the IoT.

37. The dark corners of the
IoT adoption

38. Enterprise developers are not used to mix protocols in a single solution.
Protocol wars

39. - the IoT nightmare
- how to patch the device in the field?
Security

40. - hardware lifecycle vs software lifecycle
- hardware is ordered before a software is created
- distributed devices’ metrics
Device management

41. - high availability in a field is a luxury
- design with a failure in mind
Unreliable connectivity

42. - batteries
- paid GSM data
Constrained resources

43. - temperature
- vibration
- “GPS signal lost”
Surviving environmental conditions

44. Thank you!
Henryk Konsek
@hekonsek
hekonsek@gmail.com