This document discusses building Internet of Things (IoT) devices using ARM mbed. It addresses three common problems in building smart devices: how to build them, how to connect them, and how to manage them. ARM mbed is presented as a solution to streamline development across multiple device platforms through its online IDE, code sharing capabilities, and libraries. Connectivity options for IoT like Bluetooth LE, WiFi, and cellular networks are reviewed. ARM's mbed Device Connector is demonstrated as a way to manage devices regardless of connection protocol through features like encryption and firmware updates. The presentation aims to help developers build their first connected device by walking through an example Bluetooth LE project.

1. Building IoT devices
RISE Manchester
4 May 2016
with ARM mbed

2. @janjongboom
Developer Evangelist
Internet of Things

3. Brought some help
Jonny Austin Liyou Zhou

4. ARM Development Solutions Group:High Performance Ecosystem
ARM Performance
Libraries
Open Source
HPC
Userspace Performance
Tools
Research Compilers
Commercially-
supported BLAS,
LAPACK and FFT
routines optimized for
ARM-compatible
microarchitectures.
Identification of
issues inARM builds
of open-source
packages and the
upstreaming of fixes.
New commercial tools
to deliver actionable
performance
improvement advice to
software developers.
New compiler
technology to support
and evaluate next-
generationARM
Architecture.
The mission:
Enable the ARM Software Ecosystem for HPC and the Enterprise.
25 engineers in Manchester,UK (New location, founded July 2014).

5. Developers

6. Limited world view
World is bigger than your pocket!
Interact with the physical world

7. From the internet of humans to
the internet of devices

13. Three problems
How to build smart devices?
How to connect these devices?
How to manage these devices?

14. Programming devices

15. Unstreamlined
Single-platform tools
No code sharing
Lack of libraries, documentation

16. (since 2009)
mbed

17. Online IDE
Code sharing
Single way of building for all targets

18. 91 boards supported
~200 staff working on it
170,000+ developers

19. Open source embedded platform
Operating system for microcontrollers
Rock-solid HAL and libraries (e.g. Bluetooth)

20. Developing for mbed
C / C++ (not as scary as it sounds)
Large set of libraries
Solid Bluetooth stack

21. Connectivity

22. Internet of Humans
High bandwidth
Low latency

23. Internet of Things
Bandwidth seldom matters
Latency might matter
Range & Battery do matter

24. Cellular
WiFi
Zigbee
Bluetooth Low Energy
Thread / 6LoWPAN
LoRa

25. unique position

26. Device management

27. Similar problems
• Security? No green lock for IoT.
• Manage devices over multiple protocols.
• Firmware updates?

28. We have all the pieces
• Security: mbed TLS and uVisor.
• Protocols: set of vetted and field-tested libraries.
• Updates?
No one knows more about Cortex-M series than we.

30. mbed Device Connector
• Single way of addressing devices, regardless of
protocol
• End to end encrypted with client side certs
• Management functions

31. Available today
• Free up to 100 connected devices.
• http://connector.mbed.com

32. Connector demo's

33. Time to get hacking
• Bluetooth Low Energy & WiFi
• Developing devices
• Plenty of prototype peripherals

34. Program
• Let's build a connected device
• BLE on the device, app on your phone
• Toggle LEDs, keep track of buttons
• After that: exercises or free hacking!

35. bit.ly/rise-instructions