Connecting IoTAndy Cross, Director Elastacloud Ltd

Windows Azure MVP

Da zee zij oek.

@andybareweb

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IoT fundamentals

Billions of internet connected devices All varying device capabilities Devices sometimes online

Android emergent but expensive Silicon solutions without software Software solutions on generic hardware

This session

Largely practical*we need luck for this to work!* Demonstrates the state of the art with Microsoft technologies Covers patterns and futures

Firstly - Scenario

A million internet connected, distributed heat sensors In homes, maybe connected to intelligent heating systems

Perhaps these work in buildings (‘tenants’)

We require 4 communication types: Notification: Send message to device Command: Send message and receive a response Inquiry: Receive message and send a response Telemetry: Receive a message from the device

M2M Information Exchange Patterns

Telemetry

Information flowing from a device to other systems for conveying status of device and environment

Inquiries

Requests from devices looking to gather required information or asking to initiate activities

Commands

Commands from other systems to a device or a group of devices to perform specific activities

Notifications

Information flowing from other systems to a device (-group) for conveying status changes in the rest of the world

Supporting Tech 1 -> Client

We will be using NETMF and the Netduino Plus 2.

We will be using only Open Source client libraries in order that smaller devices can reimplement or lighten the library weight

Ethernet connected as a baseline; it is possible to connect via wifi/gsm etc, but the demo gods are fickle.

Supporting Tech 2 -> Cloud

We are using Windows Azure’s storage services These do not require SSL and this eases the load on our stack – BUT

BEWARE WHAT THIS MEANS FOR YOUR APP

Queue -> For command and control Table -> For logs and reporting structured data Blob -> For reporting unstructured data

DemoNETMF storage basics

DemoNETMF storage GB -> PB

Demo 4 types of Device Communication

FuturesWhat does the future of devices and Azure hold?

What haven’t we done today?

With more capable devices: Secure connections via SSL Cipher of message content

With a better client library: Use of Shared Access Signatures for authentication

Or a totally different approach: Windows Azure Service Bus

Why Service Bus

Lightweight protocols: AMQP

Built in security

High scalability targets Throughput Number of Queues

Pub/Sub technologies suit multiple devices

What might be even better?

Front the Service Bus with MQTT as a custom Protocol Binary transfer technology, with no ceremony Lightweight, secure With SB underneath this is scalable Providing the fronting tier is itself scalable; Windows Azure

Final Thought: WTF do I do with the data? A billion devices connected has the capability to produce a huge

amount of data Azure Storage can cope with this but … how do I derive meaning from

it?

Answer: Using Big Data Technologies; see my afternoon session on Big Data: Data Liberty in an age POST Sql.

ThanksQuestions?

The slide of disaster (snafu fallback!) For M2M on Azure; follow @clemensv watch Subscribe:

http://channel9.msdn.com/Blogs/Subscribe

If you don’t hate me already … ;-0 My AzureConf 2012 video:

http://channel9.msdn.com/Events/windowsazure/AzureConf2012/A06 My netmfazurestorage lib https://github.com/andycross/netmfazurestorage

Sign up for an Azure Free Trial: http://www.windowsazure.com/en-us/pricing/free-trial/