Wednesday Mar 26, 2014

Hacking with Raspberry Pi and Java

Two new videos about Raspberry Pi GPIO with Java are now available. This hands-on training  is part of the IoT Developer Challenge and will help you to create a winning project to submit. This is a great opportunity to win a trip to JavaOne 2014! Submissions are accepted until May 30, 2014

In the first video, you will learn about the Raspberry Pi set up and the installation of Java SE Embedded and JavaFX. In the second video below, expert Vinicius Senger explains the Raspberry Pi GPIO and protocols as well as how to use the Pi4J project, a set of libraries enabling the access of the Raspberry Pi with Java. Vinicius also gives several demonstrations using a camera, LED lights, buttons and a relay board to connect to appliances. You can download the code of his demonstrations, including Pi4J Helloworld, PiPicture, Twitter4Pi and Lcdl2C

Friday Mar 14, 2014

Video: Is It a Car? Is It a Computer? No, It’s a Raspberry Pi Java Carputer

Most of us sit inside the Internet of Things without even knowing it. Today's cars have onboard computers that generate lots of data. A self-described "petrol-head," Oracle Technology Evangelist Simon Ritter combined his love of tech with is love of cars to create a simple carputer so he could access the inner workings of his Audi.

For under £100, Ritter was able to connect a Raspberry Pi to his car. He used Java Embedded and JavaFX to build an application to monitor engine performance, throttle position, and G-forces on the car. 

Enjoy his presentation from Q-Con London

and this OTN Community Cast.

Wednesday Feb 05, 2014

Mobile World Congress (MWC) Coming Up

MWC is the largest international conference for the mobile industry.  From February 25 – 27, experts, leaders and visionaries will discuss the innovations that will transform communication. 

Oracle will showcase its innovative communications services at the Communications Industry Experience Zones. It is located the Oracle Booth # 3B20 (at hall 3).  

Also at the Oracle booth, discover the breadth of Oracle Internet of Things (IoT) offerings and learn how the IoT helped fuel one of the greatest comebacks in sports history. The model of the Oracle Team USA 2013 AC72 yacht will be onsite! Oracle solution experts will be there to answer questions. Don't miss it, Register now! 

Wednesday Jan 29, 2014

Gamification for User Groups

At the gamification session of the International Oracle User Group Community (IOUC), leaders discussed how to drive membership. Typically, they give away licenses, books and goodies to encourage attendance at monthly meetings. Others have used gamification to get their communities to brainstorm on mascot names, or post pictures and comments on social media. Hackathons also require the use of similar techniques to keep attendees motivated to create applications over several days. SouJava leader Bruno Souza successfully ran hackathons that combined brainstorming, team building, training, hacking sessions and prizes to keep participants engaged.

“Turn life into a game, drive engagement of audiences, make the experience more enjoyable and get users to come back ” are the key advantages of gamification according to user group leader Jim Bethancourt.

The forum platform Stack Overflow is a great example of running a thriving community of developers with its point systems. Contributors get rewarded with points for their useful entries and visitors easily find the most relevant and best-rated entries.

The ArabOUG has implemented a point system to keep its community active. The group gives out points to the members, who contribute applications, articles, and translations. It partnered with training organizations and other services to give its members free training and services in exchange for points. As a result, members don’t have to pay for services using online payments, which governments in many countries in North Africa and the Middle East don’t allow.

In an interview, ArabOUG leader Mohamed Chargui  explains in more detail his experience using gamification.

Tuesday Dec 10, 2013

Internet of Things Interview

Java Evangelist Jim Weaver, Senior Engineer Gerrit Grunwald and Community Manager Yolande Poirier discussed the Internet of Things(IoT), Java Embedded, and the new IoT community page on Java.net. The page gathers blogs, resources and many sample applications from Java developers who create embedded applications with Java. "If we prepare developers correctly to be able to program those devices and put structures in place that monitor and control those devices, then we can have a very productive world of development: one that is powered by Java, that has the underline security and needed APIs, and that leverages Java developer expertise" Jim explained. 

"I use one Raspberry Pi with Open Dophin and many sensors to synchronize data instead of multiple Raspberry Pi's" explained Gerrit Grunwald. "Over the last 10 years, the server side was prepared very well and now it is time for the embedded side to catch up and combine everything in one big Java world" he added 


Monday Nov 25, 2013

Technical Article: JavaFX Integration Strategies

"You will rarely find isolated applications in the enterprise," says Adam Bien in the new OTN technical article entitled JavaFX Integration Strategies. Instead, an enterprise desktop application renders and manipulates the data of one or more back-end services exposed by an application server. This article focuses on the integration of Java EE services with JavaFX applications. It discusses synchronous and asynchronous communication with a JavaEE backend. LightFish and LightView were used as examples.

Author Adam Bien is a Java Champion, architect and Java developer. He is an Expert Group member for the Java EE 6 and 7, EJB 3.X, JAX-RS, and JPA 2.X JSRs.  He is the author of Real World Java EE Patterns—Rethinking Best Practices and Real World Java EE Night Hacks—Dissecting the Business Tier, and all around good guy.

Read JavaFX Integration Strategies article.

Thursday Nov 14, 2013

Video: Richard Bair on Java and the Internet of Things, Lambdas and more

Richard Bair, Client Java Architect, discusses Java and the Internet of Things, JavaFX, Lambdas and more. Video, from the Devoxx conference:

Monday Nov 11, 2013

Hack Fest Going Strong!

Today was the first day of  the IoT Hack Fest at Devoxx, the Java developer conference in Belgium.  The IoT Hack Fest started with the Raspberry Pi & Leap Motion hands-on lab. Vinicius Senger introduced the Java Embedded, Arduino and Raspberry Pi. Java Champion and ZeroTurnaround Geert Bevin presented the Leap Motion, a controller sensing your hands and fingers to play games by controlling the mouse for example. "Programmers are cooler than musicians because they can create an entire universe using all senses" explained Geert

Participants started building applications in teams using Raspberry Pi, sensors and relays. One team tested the performance of Tomcat, Java EE and Java Embedded Suite on the Raspberry Pi. Another used built an text animation using a LCD screen. Some teams are using the Leap Motion to close and open programs on the desktop and others are using it as a game control. 



Friday Oct 18, 2013

Nighthacking with James Gosling

Java Evangelist Stephen Chin is back on the road for a new NightHacking Tour. He is meeting with James Gosling at Kona, Hawaii, the launch base of the Wave Glider. The Glider is an aquatic robot which communicates real-time data from the surface of the ocean. It runs on an ARM chip using Java SE Embedded. 

"During this broadcast we will show some of the footage of his aquatic robots, talk through the technologies he is hacking on daily, and do Q&A with folks on the live chat" explains Stephen Chin. 

Sign up for the live stream on Wednesday, October 23rd at: 

8AM Hawaii Time
11AM PST
2PM EST
20:00 CET

Follow @nighthackingtv for the next Nighthacking events

Thursday Sep 26, 2013

Session Report: DataFX: The Best Way to Get Real-World Data into Your JavaFX Application

Java Champion Johan Vos of Lodgon and GUI expert Hendrik Ebbers of Materna GmbH gave a session on Vos’ labor of love, Project DataFX, a 2-year-old free and open source project intended to make retrieving, massaging, populating, viewing, and editing data in JavaFX UI controls easier. In so doing, they extend the functionality of JavaFX.

The goal of the session was to teach attendees how to develop enterprise applications in JavaFX with real-world services and data. They were focused on showing how the DataFX framework facilitates the process of data retrieval and rendering, and how it allows developers to focus on their application-specific logic.

According to Vos and Ebbers, the real value in most client-oriented business applications is the data sitting on remote servers and cloud systems. Retrieving and displaying this data must be done correctly before end users can interact with it. The open source DataFX framework aims to simplify this by enabling JavaFX developers to easily retrieve data from a variety of sources in several formats and rapidly integrate it with JavaFX components (such as TableView), using typical JavaFX patterns. The session introduced the DataFX project, gave practical advice for using it, and provided insight into future applications.

The session explored a variety of tools used in DataFX: the Concurrency API, DataFX Executor, lambda expressions, DataReader, RestReader, DataProvider, Controller API, Flow API, and many more.

The DataFX Project
Java Champion Johan Vos
Hendrik Ebbers
Be sure and go to Parleys.com to view the session in early October.
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