Alexandre Gomes's Blog

April 2008 Archives

Attention when buying bluetooth dongles

Recently, a friend of mine bought a bluetooth dongle.

In theory, it had an external antenna to enhance the signal.

Everything looked fine until the dongle fell down and the truth came up.

Wow, the expanded antenna was everything but to enhance the signal. Actually, it was nothing! Just a piece o plastic attached to the USB dongle bound to anything.

Dhammit! Take care next time you buy a bluetooth dongle....

Mobile & Embedded Community in FISL 9.0

The Mobile & Embedded Community was greatly represented at the International Free Software Conference, held in Porto Alegre, south Brazil.    At the Sun's booth, Roger Brinkley presented to all those who showed up the Mobile & Embedded Community, its projects and how big and relevant it's becoming to the digital and mobile media world. In particular, the Sun SPOTs were a show apart. Everybody wanted to know what was those soap-like devices used for.    At his talking, Roger presented the Community elements: mobile, media and embedded.    To talk about the mobile perspective, Roger invited me, Bruno Ghisi and Ricardo Ogliari (?) to expose the projects we maintain, respectivelly, DiNo/HoHo, Marge and MEChart.    DiNo is a J2ME originally built at 2003, not based on the Game API. It had beed kept closed source for 5 years, it had been commercialized by some brazilian operators and now it's fully available in the Mobile & Embedded Community under the GPL license. More about it later.    Marge is a bluetooth framework built over the JSR82. The great thing about Marge is the large availability of demos. With them, everybody can learn how to build nice bluetooth enabled applications. Actually, I also have a bluetooth framework, called BtUtil, but it do not compete with Marge. The BtUtil aims for simplicity. It's largely based on the concept of "convention over configuration". The Marge project, on the other hand, is a robust and complete layer from which one can benefit of all bluetooth resources available in the JSR82 spec.    MEChart, also hosted in the Mobile & Embedded Community, has as objective to supply an API standard for the construction of some types of graphs through the Java ME platform. Its target is devices with the CLDC and MIDP 2.0.    Later on, Roger discussed about recent project affiliations from the TV industry in the M&E Community.    To represent the Embedded element, the Trackbot was introduced. Then Roger tied one SunSPOT on his golf stick and he demonstrated how they could be used to track golf plays and fine tune movements. Afterward, on the last minutes of the congress, Roger still find time to record a podcast with me, Flávio Alves and Israel Faria. Nice to meet you again, guys!

Grizzly Comet rocked at FISL 9.0

Take a look at how crowded were the talkings me and Ted Goddard had. I think this is a good sign about how promising Comet is.

First, we showed how Comet (Ajax Push) can be used with ICEFaces and Google Web Toolkit.

Then, Ted had a whole talking about asynchronous web.

And here we are! :-)

If you want to find more about this, don't miss our talkings at JavaOne2008.

FISL 9.0 - Time to discuss the past, present and future of F/OSS

FISL 9.0 starts tomorrow at Porto Alegre, south Brazil. If you have ever been there, you know what I'm talking about. It's 3 energized days to meet people, aggregate communities, discuss technologies and talk about business and politics regarding F/OSS.

At the same time, during the FISL, SouJava and RSJUG organize the Javali Event.

Among the speakers, some friends of us will be present. Let's say, Simon Phipps, Pat Patterson, Gregg Sporar, Rafael Vanoni Polanczyk, Arun Gupta, Roger Brinkle, Bruno Souza, Lucas Torri, Bruno Ghisi, me :-) and more. If you come by, don't forget to look for us.

There comes the Java talkings:

Desenvolvimento de Rich Internet Applications de alto desempenho para a Web 2.0 com o Google Web Toolkit e Grizzly Comet
Speakers: Alexandre Gomes e Jean-François Arcand

Memory Leaks in Java Applications - Different Tools for Different Types of Leaks
Speakers: Gregg Sporar

Apache Harmony : Building open-source Java from the Ground Up
Speakers: Geir Magnusson Jr

OpenJDK and GNU/Linux
Speakers: Tom Marble, Ray Gans e Rich Sands

Produtividade na Web com Apache Wicket
Speakers: Claudio Miranda

Mobile & Embedded: The first 15 months
Speaker: Roger Brinkley

Projeto Marge, um framework livre para criação de aplicações Bluetooth em Java
Speakers: Bruno Cavaler Ghisi e Lucas Bortolaso Torri

GlassFish and a Preview of the Next Version of Enterprise Java, Java EE 6
Speaker: Ken Drachnik

JBoss Drools: Mudando as Regras do Jogo
Speaker: Fernando Meyer

JBoss 5 - As novidades da versão penta para a Comunidade Livre!
Speaker: Edgar Silva

Java ME for cool devices: The open source phoneME project
Speaker: Terrence Barr

Real-Time Linux e Real Time Java - um novo mundo sem delays
Speaker: Flavio C Buccianti

Gráficos em Java ME através da MECHART
Speaker: Ricardo da Silva Ogliari

Netbeans 6: indo além do Java
Speaker: Jose Maria Silveira Neto

Inclusão Digital com Java e projeto JEDI - Uma realidade
Speaker: Daniel Wildt

Tirando o máximo do Java EE 5 com jCompany Community & Intl Version GPLv3
Speaker: Paulo Alvim

OFBiz: Free Software for Business
Speakers: Ean Schuessler e Bruno Souza

Relatórios para web com JasperReports e Struts2
Speaker: Manoel Pimentel Medeiros

Utilizando o padrão aberto de representação de imagens SVG (Scalable Vector Graphics) com Java ME
Speaker: Antonio Eloi de Sousa Júnior

Grails - Agilidade, produtividade e código bonito ao alcance de todos!
Speaker: Rodrigo Urubatan

Hope to see you there!

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