Building IoT devices

RISE Manchester 4 May 2016

with ARM mbed

@janjongboom

Developer EvangelistInternet of Things

Brought some help

Jonny Austin Liyou Zhou

ARM Development Solutions Group: High Performance Ecosystem

ARM Performance Libraries

Open SourceHPC

Userspace PerformanceTools

Research Compilers

Commercially-supported BLAS, LAPACK and FFT

routines optimized forARM-compatible

microarchitectures.

Identification ofissues in ARM 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-generation ARM Architecture.

The mission:Enable the ARM Software Ecosystem for HPC and the Enterprise.

25 engineers in Manchester, UK (New location, founded July 2014).

Developers

Limited world viewWorld is bigger than your pocket!

Interact with the physical world

From the internet of humans to the internet of devices

Three problemsHow to build smart devices?

How to connect these devices?

How to manage these devices?

Programming devices

UnstreamlinedSingle-platform tools

No code sharing Lack of libraries, documentation

(since 2009)

mbed

Online IDE

Code sharing

Single way of building for all targets

91 boards supported

~200 staff working on it

170,000+ developers

Open source embedded platform

Operating system for microcontrollers

Rock-solid HAL and libraries (e.g. Bluetooth)

Developing for mbedC / C++ (not as scary as it sounds)

Large set of libraries

Solid Bluetooth stack

Connectivity

Internet of HumansHigh bandwidth

Low latency

Internet of ThingsBandwidth seldom matters

Latency might matter

Range & Battery do matter

Cellular

WiFi

Zigbee

Bluetooth Low Energy

Thread / 6LoWPAN

LoRa

unique position

Device management

Similar problems

• Security? No green lock for IoT.

• Manage devices over multiple protocols.

• Firmware updates?

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.

mbed Device Connector

• Single way of addressing devices, regardless of protocol

• End to end encrypted with client side certs

• Management functions

Available today

• Free up to 100 connected devices.

• http://connector.mbed.com

Connector demo's

Time to get hacking

• Bluetooth Low Energy & WiFi

• Developing devices

• Plenty of prototype peripherals

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!

bit.ly/rise-instructions