Search found 5899 matches

by gloomyandy
Wed Nov 22, 2017 5:45 pm
Forum: EV3 Projects
Topic: This is Rover
Replies: 4
Views: 33

Re: This is Rover

Yep they all sound like typical robot vision problems! Robotics in the real world is not an easy problem to solve! This is especially true with low cost hardware. But the fun part is that with a "toy" you are recreating things that were cutting edge research only a few years ago (and which...
by gloomyandy
Fri Nov 17, 2017 10:09 am
Forum: NXJ Software
Topic: stop travel - command
Replies: 8
Views: 20

Re: stop travel - command

You didn't answer the question as to what exactly you are going to use to indicate to the EV3 that things have gone wrong (are you going to simply use one of the buttons on the EV3 as in your earlier code), the details can make a lot of difference to the possible solutions! But anyway I have already...
by gloomyandy
Thu Nov 16, 2017 9:26 pm
Forum: NXJ Software
Topic: stop travel - command
Replies: 8
Views: 20

Re: stop travel - command

So how do you intend to "detect that our code is wrong for some reason or the robot is getting out of line" and how do you inform your program that this has happened? Looking at your code it seems like you intend to press a button on the EV3 is that the only event you need to detect?
by gloomyandy
Thu Nov 16, 2017 5:37 pm
Forum: NXJ Software
Topic: stop travel - command
Replies: 8
Views: 20

Re: stop travel - command

So under what circumstances do you want to stop the travel? How are you detecting the need to stop? Do you have more than one thread? What do you want to happen then? What about the rest of the series of moves inside that loop? As an aside having a long series of hard coded move requests is almost c...
by gloomyandy
Thu Nov 16, 2017 4:27 pm
Forum: NXJ Software
Topic: stop travel - command
Replies: 8
Views: 20

Re: stop travel - command

The answer is in this thread: viewtopic.php?f=18&t=9021

What is it that you do not understand? What have you tried to do, what happens, what did you expect to happen? You need to explain what problems you are having if you want to get a useful answer.
by gloomyandy
Mon Nov 13, 2017 8:04 am
Forum: EV3 Software
Topic: movePilot questions
Replies: 13
Views: 350

Re: movePilot questions

You can always get the most recent versions of our source from sourceforge. I will let Aswin confirm but as far as I can tell no changes have been made to the MovePilot, he did however update the WheeledChassis to fix the bugs mentioned in this thread. The most recent WheeledChasis code is here.... ...
by gloomyandy
Fri Nov 10, 2017 7:36 pm
Forum: EV3 Software
Topic: How to control movement?
Replies: 5
Views: 47

Re: How to control movement?

Yes I remember you never did report back on what happens if you consistently use the pose provider that is built into the chassis rather then the OdometryPoseProvider. I still don't understand what problems you have had with the coordinate system and why you have to use your own? As to how to correc...
by gloomyandy
Fri Nov 10, 2017 3:56 pm
Forum: EV3 Software
Topic: How to control movement?
Replies: 5
Views: 47

Re: How to control movement?

That does not make a lot of sense to me. Why are you executing additional travel commands if you don't want the robot to move? Calling travel etc. with immediate returns will not simply skip the move request, it will be started, if you then call some other movement request rather than waiting for th...
by gloomyandy
Thu Nov 09, 2017 9:43 pm
Forum: EV3 Hardware
Topic: Bus error
Replies: 1
Views: 13

Re: Bus error

Sounds like the sd card is corrupt. So yes I'd try a reinstall, if that does not work try formatting the card and then reinstall. As to the search, I would use google to search the forum so something like:
site:https://lejos.sourceforge.io "bus error"
in the google search box should work.
by gloomyandy
Thu Nov 09, 2017 9:38 pm
Forum: EV3 Software
Topic: How to send email from EV3 using WIFI
Replies: 6
Views: 39

Re: How to send email from EV3 using WIFI

Actually that looks more like a java class that is not included in the Java SE Embedded profile (none of the AWT classes are supported).
by gloomyandy
Thu Nov 09, 2017 2:42 pm
Forum: EV3 Software
Topic: How to send email from EV3 using WIFI
Replies: 6
Views: 39

Re: How to send email from EV3 using WIFI

Before you go too far I would suggest that you understand how the jars work. In particular check to see if they make use of any native code or expect to have any services running on the local OS. Either of these will likely make getting things working much more difficult.
by gloomyandy
Thu Nov 09, 2017 8:49 am
Forum: EV3 Software
Topic: How to send email from EV3 using WIFI
Replies: 6
Views: 39

Re: How to send email from EV3 using WIFI

Hi, firstly a couple of things... 1. What version of Java do you have installed on your EV3? Most people will be using Java 7 not Java 8 as it is considerably easier to install a Java 7 JRE than build and install a Java 8 JRE. 2. You should ensure that whatever version of Java you have on the EV3 yo...
by gloomyandy
Tue Nov 07, 2017 5:41 pm
Forum: EV3 Software
Topic: Navigator, Pilot, PoseProvider, coordinate System questions
Replies: 63
Views: 4544

Re: Navigator, Pilot, PoseProvider, coordinate System questions

Please start a new thread to ask your question and provide more details of what it is you are currently doing and what it is you want to do (and why you need to do it). It usually helps if you explain what things you have already tried and what happened when you tried them. The more details you can ...
by gloomyandy
Sun Nov 05, 2017 9:12 am
Forum: EV3 Projects
Topic: This is Rover
Replies: 4
Views: 33

Re: This is Rover

Nice, rather than get a different webcam, you might want to hunt around and see if you can find a lens that can change the field of view of what you have?
by gloomyandy
Fri Nov 03, 2017 9:28 pm
Forum: EV3 Software
Topic: Internal JVM Memory Management
Replies: 2
Views: 23

Re: Internal JVM Memory Management

I'd wait until you have hit a problem before you worry about it! I've never had memory issues on the EV3. Are you sure that the menu system is really taking 52Mb of physical memory? Some of that may be uncommitted pages. I suspect that you will also find that a good chunk of that will be code pages ...

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