.NET Micro Framework

Devices Profile For Web Services

DPWS

Jim Mateer

Program Manager.NET Micro Framework

Jamesmat@microsoft.com

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.NET Micro Framework

Microsoft’s latest offering for embedded

development

Small, resource constrained devices

Underlying OS is not necessary

Managed execution environment

Visual Studio development environment

Extensible hardware emulator

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Portable Media Center

Extending the Microsoft Embedded Story

Windows Mobile

Smartphone

Increasing Functionality

Windows CE

Windows Mobile

Pocket PC Phone

Wearable Devices

.NET Micro

Framework Windows XP Embedded

Windows

Automotive

VoIP Phones

Mobile

Handhelds

Gateways

Set-top Boxes

Medical Devices

Windows-based

Terminals

Retail Point-of-Sale

Entertainment Devices

Sensor Nodes

Auxiliary Displays

Health Monitoring

Remote Controls

Security

Building Automation

Visual Studio + Managed Code

Decreasing Size

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Advantages of the .NET Micro Framework

Visual Studio Development Environment

.NET Managed development and execution

No native or core development required

Small footprint

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.NET Micro Framework V2.0

V1 was an internal build

V2.0 was released at Embedded World,

Germany 02/2007

Service Pack 1 released 9/18/2007 at

ESC East

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Service Pack 1

TFFont.EXE

Improved deployment feedback

Improved sockets

Firmware and Application IP protection

Extended flash management tool (MFDeploy)

Greatly expanded documentation

Customer reported bug fixes

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Architecture

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Microsoft Web Services Architecture

Windows Communication Foundation (WCF)

The next-generation Microsoft programming platform and runtime system

for building, configuring, and deploying network-distributed services.

Network Connected Devices (NCD)

A set of 4 technologies that enable virtually connected devices

to appear as if they were physically connected

Devices Profile for Web Services (DPWS)

Enables basic interoperability between

IP-capable Devices and Web services.

.NET Micro Framework DPWS (MF-DPWS)

A DPWS stack developed specifically

for the .NET Micro Framework

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DPWS – Service Hosting

Examples of devices hosting one or more services

Fax/Printer/Scanner

A device can host multiple services. Each service operates as a separate, individual

entity with its own endpoints

Projector

The Printer and Projector device profiles are included in Windows Vista

Thermostat

Any device running the .NET Micro Framework can host or consume web services. All

that is needed is a Device Profile for that device

Smart CoffeeMaker

MF-DPWS provides the DPWS stack and necessary base classes to enable creating

Device Profiles

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DPWS Clients

Examples of devices as clients

PDA

SmartPhone

MP3 Player

Remote controls

Examples of things client devices can do

Subscribing to Web Services, such as a Stock Ticker

Subscribing to traffic flow services

Subscribing to a home event notification service

Subscribe to a home music delivery service

Initiate service actions

Remotely control devices

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MF-DPWS – Hybrid Devices

Hybrid Devices

Intelligent power monitoring

Subscribing to power company service to determine best rates

(Client)

Providing rate information to smart appliances (Service)

Navigation System

Subscribing to local services (Client)

Gas prices

Restaurant seating availability

Traffic conditions

Providing location information (Service)

Current location

Destination (if a route is active)

Speed and Direction

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MF-DPWS Stack (1)

What is included

Most of everything from the DPWS 2/2004 specification

Discovery

Probe and Match

Metadata Exchange

Eventing

Hello

Bye

Subscriptions

Attachments

MTOM

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MF-DPWS Stack (2)

What is not included

WS-Policy is not supported

WS-Security is not supported

DateTime types not supported for Subscription Duration/Renewal

IPv6

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MF-DPWS A Typical operation

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MF-DPWS Stack Classes

MFDpwsStack.DLL

All Managed Code (C#)

Base services and extensibility features

Provides tools to develop custom DPWS profiles

HTTP and UDP Transport Services

Service Endpoint classes

SOAP message parsers

Service dispatchers

MTOM processor

XML Services

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MF-DPWS Client Classes

MFDpwsClient.DLL

Classes provide boilerplate DPWS/WS* Services

Client specific

Discovery

Eventing (Subscribing)

Application developers derive custom classes from DPWS

client classes

Used to create device specific client implementations

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MF-DPWS Device Classes

MFDpwsDevice.DLL

Frame work for device specific implementations

Base methods called by MF-DPWS services

Dispatching Requests

Dispatching Events

Stores actions and events

Used by application developers to develop device specific

functionality

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MF-DPWS Availability

Beta program available now

Contact jamesmat@microsoft.com for details

.NET Micro Framework DPWS Code generation tool under

development (ETA ~Q1/2008)

MF specific version of Svcutil.EXE

Generates WSDL from a Service

Generate an MF-Client from a WSDL

Generate an MF-Service stub from a WSDL

Currently only supported on Digi ConnectME device

Other platforms support expected 12/2007

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Questions?

Jim Mateer

Microsoft Program Manager

.NET Micro Framework

jamesmat@microsoft.com