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Posts Tagged 'Windows CE'

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Community Days 2014 : “Internet of Things : my washing machine connected to the Internet ?”

 

 

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This time, with great honor, I will be among the speakers of the Community Days 2014 to be held September 23 to 25 in Rome, after I was there more times as attendee in the past.

The honor will be double, because I will have the session with my dear friend Valter Minute that I recognized as the "Maradona" of embedded systems.

Our session entitled "Internet of Things: my washing machine connected to the Internet?" will be completely dedicated to IoT starting from embedded systems (Microsoft based) to the possible solutions in the Cloud, including the future project "Reykjavik" based on Azure and presented at Build 2014; the title tells the truth, among other things, we will have as its protagonist a washing machine (toy) !

You can find all the information concerning the agenda of the sessions and logistics on the official website in addition to the registration form.

We look forward to this event every year will not disappoint the expectations of those who participate !

M2Mqtt and GnatMQ … now on Windows 8.1 and Windows Phone 8.1 !!

      It seems that I was on vacation (given the lack of posts on my blog) and it's the truth ! Despite the holiday, I continued the development of the M2Mqtt project and today I am pleased to release the new version 3.6.0.0 with WinRT support !! I made some changes on networking layer (from Socket to StreamSocket), thread (from Thread to Task) and security but finally the first MQTT client for all .Net platforms today also works on tablets with Windows 8.1 and on smartphones with Windows Phone 8.1. The new project, added in a Visual Studio 2013 solution, is a "portable class library" that I used and tested in a Universal App. The same for the "brother" GnatMQ, now in version (Beta) 0.9.2.0, thanks to which we have an MQTT broker to run on tablet and smartphone with Windows 8.1 OS family. Of course I updated the Nuget package by adding the assemblies for WinRT. I hope I did something useful f ...

M2Mqtt : added tracing support for the MQTT client

The M2Mqtt library is now at 3.4.0.0 release with the new tracing feature in debugging mode. The project has the new Trace class that exposes the static member TraceListener declared as the following delegate : 1: // delegate for writing trace 2: public delegate void WriteTrace(string format, params object[] args); In this way, it is possibile to chose our preferred tracing mode setting a method to this delegate. Furthermore, it is possibile to set the tracing level using thet static member TraceLevel with the following possible values : 1: /// <summary> 2: /// Tracing levels 3: /// </summary> 4: public enum TraceLevel 5: { 6: Error = 0x01, 7: Warning = 0x02, 8: Information = 0x04, 9: Verbose = 0x0F, 10: Frame = 0x10 11: } A simple example of tracing usage could be the following : 1: Trace.TraceLevel = MqttUtility.TraceLevel.Verbose | MqttUtility.TraceLevel.Frame; 2: Trace.T ...

IoT@Work : Internet of Things event in Microsoft headquarters in Rome

  Friday, June 6th IoT@Work event  was held in Rome at the Microsoft headquarters and it was organized by the DomusDotNet community and the online TinyCLR.it community (of which I am member). Thanks to the hospitality of Massimo Bonanni and all the guys in the community, we spent an entire day dedicated to the Internet of Things. In the morning, Mirco Vanini started showing us what Internet of Things is and what it is not with a series of real use cases and future projections of this new business. The next session saw myself as the lead in tackling a technical point of view of main protocols that are used in the IoT, each with their own advantages and disadvantages. The morning sessions were completed by Lorenzo Maiorfi who spoke of "flow-programming", its application in the IoT and two main tools that can be used for this purpose: NodeRed and Orleans. ...

M2Mqtt : release 3.3.0.0 for MQTT client on .Net platform

Development of M2Mqtt library continues .... now reached the version 3.3.0.0 ! This time the new features are related to two requests from people who are using it. First, I added more overloads for Connect() method, because from when I removed the default parameters (for compatibility with older versions of the .Net Framework) I left the more complex constructor that requires all parameters. Many people, not knowing well the MQTT protocol, found themselves in difficulty in deciding what values ​​to pass to lesser known parameters (will message, clean session, ...). A further new feature concerns the client disconnected event (from the MQTT broker) that was requested on the official CodePlex web site. The MqttClient class exposes MqttMsgDisconnected event that is raised when a condition of connection failure with the broker is detected and typically in two cases : when there isn’t network traffic, when client sends the PINGREQ message (relative to the keep-alive) it doesn’t receive ...

GnatMQ : MQTT broker for the .Net framework

With a week later than the expected output, I finally released in Beta an MQTT broker completely developed in  C# that can run on .NET Framework and .NET Compact Framework 3.9 (on systems with Windows Embedded Compact 2013) his name is ... GnatMQ ! It has the M2Mqtt library “core” with which it shares the features of MQTT protocol about the part of the connection to the clients and the messages management. Obviously, it is completely open source and available on CodePlex but is currently in Beta version (aspect numerous reports on your part!). Main features included in the current release : All three Quality of Service (QoS) Levels (at most once, at least once, exactly once); Clean session; Retained messages; Will message (QoS, topic and message); Username/Password via a User Access Control; Subscription to topics with wildcards; Publish and subscribe handle using inf ...

I’m Microsoft MVP for Windows Embedded !!

  Yesterday, my afternoon's work was interrupted by one of the most beautiful email that I could receive: I was nominated as a Microsoft MVP for Windows Embedded category ! This award is the result of my passion and desire to share my knowledge with other people that started in 2011, the year in which I began to follow events organized by my current regional community DotNetCampania, which are subsequently became a member. Kidnapped from the soul with which they were held events, I have decided to become an active part of it and my first thanks go to all those that are part of it, because it is thanks to them that I have received this award which of course is for all them ! Thanks to Cristina Gonzalez Herrero who is my MVP community lead starting from yesterday and who will follow me in this year to do better for the community. Thanks to all the Italians Windows Embedded MVP who believed in me. In the time order I first met them, thanks to Valter Minute, the first guru and symbol of the Microsoft e ...

Welcome to the Internet of Your Things !!

  Today is "born" a new dedicated website by Microsoft on the Internet of Things that talks about the Internet of Your Things and highlights that the IoT can be achieved by each of us with his own "things" that can interconnect with each other through the Cloud. On the website you can find all the information about this new (or already mature ?) project on which Microsoft is focusing its business using what is already good for the embedded world (all operating systems of the Windows Embedded family to which I would add the .NET Micro Framework) and joining it to the powerful of the Cloud (Microsoft Azure is well known). It's true what the new CEO Satya Nadella said with intention to want "a cloud for everyone , on every device" for which the #cloud4device can be understood in its most general main, not only smartphones and tablets but also devices and "things" that connect to the big network ! You can subscribe to a newsletter that will begin on July 1st, but ... maybe from that date ... we'll see ...

M2Mqtt : bug fix and new version 3.2.0.0

 

If using 3.1.0.0 version you realize that Connect and Disconnect events are not raised ... it is correct ... they are not handled in the client and you need to update the library or ignore them !

I released an update M2Mqtt library (version 3.2.0.0) that lays out this oversight.

Following the code merge between the M2Mqtt client library and the future GnatMQ broker I made the mistake of including the SUBSCRIBE, UNSUBSCRIBE, CONNECT and DISCONNECT messages handling also in the client (of course without any sense) with the corresponding events.

The update is available as always on Nuget and I proceeded to update the corresponding M2Mqtt4CE component for Windows Embedded Compact 2013.

M2Mqtt : MQTT for all .Net platforms with a new version and more social !

Also this time an update arrives on time for my M2Mqtt library now reached to version 3.1.0.0 ! The main updates concerning better management of QoS Level 2 , some client properties exposed to the outside but especially the fact that it assessed and added some requests that I received by users that obviously thank you ! Also, in some parts of the source code you will see a compilation directive that is conditional on the definition of the symbol BROKER ... why ? I standardized the library code of M2Mqtt with the code of a MQTT broker that I am developing and which will shortly be released in beta version. Its name is GnatMQ and the project is already published online on CodePlex and then open source. Please note that currently it is still a version in development and not completely stable but the release is imminent ! In addition to updating the project on CodePlex , I updated its package on Nuget ( which has now passed 1000 downloads ! ), the code in the Microsoft Gallery and the project M2Mqtt4CE to in ...

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