Search found 361 matches

by esmetaman
Wed Jan 10, 2018 4:25 pm
Forum: EV3 Software
Topic: JDK 9 Support
Replies: 9
Views: 713

Re: JDK 9 Support

Hi Andy, in my tests once I execute this statement: java -Xshare:dump The performance is the same than Oracle JRE8 on EV3. (I am impressed. The results with OpenJDK 8 was poor) https://github.com/ev3dev-lang-java/jvm-benchmark This week, I start using the JRE 9 and I didn't find any problem: https:/...
by esmetaman
Tue Jan 09, 2018 9:57 pm
Forum: EV3 Software
Topic: JDK 9 Support
Replies: 9
Views: 713

Re: JDK 9 Support

I think that Oracle could certificate his own version of Oracle JRE.
For the scenario of a build based on OpenJDK, "the certification" is the usage of the build by the community.

Juan Antonio
by esmetaman
Mon Jan 08, 2018 11:21 pm
Forum: EV3 Software
Topic: JDK 9 Support
Replies: 9
Views: 713

Re: JDK 9 Support

Happy new year!!! From today, any LeJOS user can install Java 9 in JDK/JRE versions for EV3 Brick: https://github.com/ev3dev-lang-java/openjdk-9-ev3 https://github.com/ev3dev-lang-java/openjdk-9-ev3/releases Excellent work with the Docker image to cross compile OpenJDK 9 for EV3: @linuxtardis (Jakub...
by esmetaman
Sun Sep 24, 2017 7:59 pm
Forum: EV3 Software
Topic: JDK 9 Support
Replies: 9
Views: 713

Re: JDK 9 Support

I am trying to build for EV3 with OpenJ9 a JVM for Java 9 from Eclipse foundation: http://www.eclipse.org/openj9/ Eclipse OpenJ9 is a high performance, scalable, Java virtual machine (JVM) implementation that represents hundreds of person-years of effort. Contributed to the Eclipse project by IBM, t...
by esmetaman
Fri Sep 08, 2017 4:38 pm
Forum: EV3 Software
Topic: Doubt about package lejos.internal.dbus
Replies: 2
Views: 211

Re: Doubt about package lejos.internal.dbus

Hi @Andy, yes, the question was about the architecture behind the classes. In some point, maybe in 3 months more or less, I will add that support and I would like to check with you the current approach to copy. In the past, I used the classes in a intensive way for NXT and for EV3 a bit, but I didn´...
by esmetaman
Thu Sep 07, 2017 7:29 pm
Forum: EV3 Software
Topic: Can leJOS run on ev3dev?
Replies: 32
Views: 6811

Re: Can leJOS run on ev3dev?

ev3dev-lang-java 0.7.0 is out. ## 0.7.0 2017-09-06 - Upgrade lejos-commons to 0.6.0 - Docker Support - Upgrade Wrapper - Upgrade Fat Jar generation - Adding Port support - Support for BrickPi3 - Add Support Absolute IMU - Add Support for NXTCam V5 - Initial Test support Maven artifact: https://jitpa...
by esmetaman
Thu Sep 07, 2017 7:23 pm
Forum: EV3 Software
Topic: Doubt about package lejos.internal.dbus
Replies: 2
Views: 211

Doubt about package lejos.internal.dbus

Hi Andy, I was checking that the project, has a package to integrate with dbus, the package is: package lejos.internal.dbus; Using this project, is able to use Bluez? Do you know one example to test Bluetooth? Is it possible to use the classes from NXT? https://sourceforge.net/p/lejos/nxt/code/HEAD/...
by esmetaman
Thu Sep 07, 2017 7:19 pm
Forum: EV3 Software
Topic: Doubt about Remote Support
Replies: 2
Views: 194

Re: Doubt about Remote Support

Many thanks Andy,

I will review the support.

Juan Antonio
by esmetaman
Wed Sep 06, 2017 9:52 pm
Forum: EV3 Software
Topic: Doubt about Remote Support
Replies: 2
Views: 194

Doubt about Remote Support

Hi Andy,

the packages about remoting has some kind of integration with the infrastructure or it is pure Java using RMI?

I would like to do a POC to use a Brick with LeJOS and a Java library on EV3Dev.

Juan Antonio
by esmetaman
Sun Sep 03, 2017 8:41 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 331

Re: Doubts about MindsensorsAbsoluteIMU

I will test this week if using Java Mission Control, is possible to show IMU raw data. http://www.oracle.com/technetwork/java/javaseproducts/mission-control/java-mission-control-1998576.html But in parallel, i will read the links that you say. What do you think if this season, we write some document...
by esmetaman
Sun Sep 03, 2017 5:22 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 331

Re: Doubts about MindsensorsAbsoluteIMU

No, Andy, I said in general not in a particular IMU sensor. For example, Aswin used Excel in his articles: https://nxttime.wordpress.com/2013/04/19/the-gyro-sensor/ https://nxttime.files.wordpress.com/2013/04/gyro-1.png Do you use some kind of plot tool to show the sensor output in Real time?
by esmetaman
Sun Sep 03, 2017 4:41 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 331

Re: Doubts about MindsensorsAbsoluteIMU

Yes, I agree with you that it is fantastic the Bosch Sensor but the question is about the AbsoluteIMU.

In your tests, how to visualize the raw Output from complex sensors like IMUs?
by esmetaman
Sun Sep 03, 2017 2:06 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 331

Re: Doubts about MindsensorsAbsoluteIMU

Hi Andy, Now, I understand. Although both modes are quite similar the difference is the last parameter: The methods are defined in this way: compassMode = new ShortSensorMode("Compass", COMPASS_DATA, 1, 1.0f, 1.0f); angleMode = new ShortSensorMode("Angle", COMPASS_DATA, 1, 1.0f, ...
by esmetaman
Sun Sep 03, 2017 11:50 am
Forum: EV3 Projects
Topic: Robotics for the masses!
Replies: 3
Views: 304

Re: Robotics for the masses!

Hi @ruperty,

It is a nice initiative. In my case, I am working in a library running inside of the Brick Directly, it is possible.

Enjoy with the research.

Cheers

Juan Antonio
by esmetaman
Sun Sep 03, 2017 11:42 am
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 331

Doubts about MindsensorsAbsoluteIMU

Hi, I am reviewing the implementation of the Sensor: MindsensorsAbsoluteIMU and I detected that the mode: "Compass" & "Angle" are the same. Why? https://sourceforge.net/p/lejos/ev3/code/ci/master/tree/ev3classes/src/lejos/hardware/sensor/MindsensorsAbsoluteIMU.java protected ...

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