Paolo's blog entries

From the monthly archives: February 2014

We are pleased to present below all posts archived in 'February 2014'. If you still can't find what you are looking for, try using the search box.

MQTT Client + Inflight Queue = M2Mqtt 3.0 !

My M2Mqtt open source library has finally come to version 3.0 with two important news ! In the first place, the operations of publish, subscribe and unsubscribe have become completely asynchronous. Until the previous version , the corresponding methods were synchronous even if the library raised related events on published message and subscription / unsubscription occurred. In particular , in the Publish() method the exchange of messages with the broker was run  to ensure the required QoS ( PUBACK for QoS 1 , PUBREC , PUBREL and PUBCOMP for QoS2 ) while in the Subscribe() and Unsubscribe() methods handled the acknowledge ( SUBACK and UNSUBACK ). Now , these methods not bother to put a message in a queue and immediately return the message id itself , which is why there is a "breaking change" on the Subscribe() method that does not return the array with the "granted" QoS level. This array is still provided at the end of the asynchronous operation in the event args object of the corresponding event. I tal ...

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Microsoft Embedded Conference 2014 : a great second edition !

On Saturday 15th of February was staged the second edition of Microsoft Embedded Conference which was held at the Holiday Inn in Naples and organized by the DotNetCampania community (I am a member of it), and Embedded101, this community that is a reference on Windows Embedded of which, I’m a "board of directors" member since November 2013. Also this year there was a good turnout of attendees even though it was Saturday, because the main topic was the Internet of Things and M2M Communication of which we hear persistently in the last period as the business of the future for the big network. At 8:00, the team was ready for the preparations and organization in order to accommodate very well the attendees and ensure that the event will start on time. As with all events, we started with the keynote of our president Michele Aponte, who presented the community and to whom I have given ...

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Channel9 : NFC library for all Windows Embedded platforms on Coding4Fun


This time Creg Duncan had to give more than usual explanations to justify the very first constant presence on the Coding4Fun blog!

“Today's Hardware Friday post is another project from our Friend of the Blog, Paolo Patierno (yeah, yeah, I know, it seems like I'm posting his stuff all the time, but hey, it's cool stuff) !”

I'm glad that my "small" open source projects had quite successful and this is the time of uNFC library that implements support for the NXP PN532 NFC chip for all Windows Embedded platforms (from. NET Micro Framework to Windows Embedded 8 passing Windows Embedded Compact).

About this library ... tomorrow it will be featured at the Microsoft Embedded Conference in Naples in a demo on Smart Home & Smart Factory System!

As always .... it is a pleasure to be there!

A bocca aperta

Microsoft Embedded Conference and Netduino Home Automation with Packt Publishing

This year at the second edition of Microsoft Embedded Conference in Naples (on 15 February), the Netduino board will be present in a demo on Smart Home and Smart Factory systems based on MQTT protocol as an example of Internet of Things project. The same board is also protagonist of the book “Netduino Home Automation Projects” written by Matt Cavanagh and published by Packt Publishing. This editor will be “Contributor” sponsor and it gave us two printed copies of the book for two lucky attendees !

I hope that you will be there !!!



.Net Micro Framework 4.3 QFE1 is finally here !!

After waiting for months to watch this post on the blog of .Net Micro Framework team …. finally 4.3 QFE1 version is officially released ! It's been over a year since the last release of the 4.3 RTM version, but I hope that with the advent of the Internet of Things, Microsoft will support better this product that has huge growth potential. Compared to RTM, these are the bug fixes: Work Item: 1874 - Interop compilation fail for project name with dot ('.') Work Item: 509 - Add BitConverter Work Item: 1951 - StringBuilder.Replace Exception Work Item: 2012 - StringBuilder.Replace previous bug resurfaced again Work Item: 1784 - Array.BinarySearch() not accepting null comparer Work Item: 1855 - SDK Installer for 4.3 shows incorrect error message Work Item: 1400 - URI parsing fails when :XX sequence appears and no explicit port is used Work Item: 1738 - var uri = new Uri( ...

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VS2012 and Platform Builder : “fatal error ! Microsoft.NET Framework v4.x must be installed on your machine”

Today, preparing a Windows Embedded Compact 2013 image for an eBox 3310A and for the demo at Microsoft Embedded Conference in February 2014, the Windows 7 operating system (a virtual machine) decides to upgrade the version of .Net Framework from 4.5 to 4.5.1. Reboot the system and resume the job ... but the build system for Visual Studio 2012 has gone mad and the next attempt to build fails! A warning indicates that the .Net Framework 4.5 is not installed on the system and an obvious fatal error indicates that the compilation can not be done! I have found no official news from Microsoft to fix this problem but I have circumvented the problem in the following way .... First I open the file indicated by the fatal error, ie sources.ce in the path C: \ WINCE800 \ public \ common \ oak \ misc, which reports the error in case the environment variable _DOTNET40ROOT  is empty. !IF "$(_DOTNET40ROOT)" == "" !   ERROR Error: Microsoft.NET Framework v4.x must be installed on your machine. ...

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