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2022-11-21 15:53:41 -0500 asked a question Lookup would require extrapolation into the future on the same machine

Lookup would require extrapolation into the future on the same machine I get this error when trying to view my RPLidar A

2022-09-06 00:22:41 -0500 received badge  Popular Question (source)
2022-06-30 13:10:49 -0500 edited question How do you use the iRobot Create 2, an Ubuntu laptop running ROS Kinetic and a Kinect v1 together?

How do you use the iRobot Create 2, an Ubuntu laptop running ROS Kinetic and a Kinect v1 together? If you know about Tur

2022-06-30 12:54:45 -0500 asked a question AMCL not using local costmap for path planning

AMCL not using local costmap for path planning My AMCL seems to only be using the global costmap for path planning. If I

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2019-10-13 16:46:06 -0500 marked best answer How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

I have a Kobuki and installed Turtlebot software on my Turtlebot laptop and set everything up for Turtlebot, and I just got an RPLIDAR A2 yesterday and I couldn't figure out how to get it to work with Turtlebot Gmapping and AMCL, to navigate autonomously. On the remote computer the scan doesn't show up but the Kobuki's odometry shows up. I dont think there were any errors. In the launch file I deleted the line of code that starts the 3d camera, and I start the RPLIDAR node from another command line. But again, nothing! So please help me if you can. I am running Ubuntu 16.04 and ROS Kinetic on the Turtlebot Laptop and Ubuntu 14.04 ROS Indigo on the remote computer. Thanks!

Edit: I am now using hector_slam to do this. I have a pretty noisy map but I guess it could work, but now the question is how does the Turtlebot use the RPLIDAR A2 to navigate in the map generated by hector_slam? What parameters should I use in RVIZ? Is there a hector navigation file?

Edit 2: I could still use Gmapping, and obviously that would be SO much easier since I know how to do gmapping, but how do I implement it with an RPLIDAR A2? I will edit this again when I can get the error codes. Also, the errors happen when I run the rplidar node and then the turtlebot minimal node and then the gmapping node and I think it's because of a transform that I didn't put in the launch file.

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2017-08-12 08:08:55 -0500 edited question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

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2017-06-08 15:35:56 -0500 edited question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

2017-06-08 15:24:12 -0500 edited question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

2017-06-08 15:23:11 -0500 edited question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

2017-06-08 15:22:38 -0500 edited question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

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2017-06-05 16:10:20 -0500 edited question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

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2017-06-02 14:33:33 -0500 asked a question How to do GMapping and SLAM Navigation using RPLIDAR A2 and Kobuki?

How to do SLAM Mapping and Navigation using RPLIDAR A2 and Turtlebot? I have a Kobuki and installed Turtlebot software o

2017-03-29 14:00:11 -0500 asked a question How do you make a transform for a laser and a Kobuki?

What I want to do is to use "slam_gmapping" for my Kobuki robot and I'm using a Phab2 Pro as the laser scanner, because on the phone itself, it converts pointcloud to laser scans. (Phab2 Pro has Project Tango built in) But the problem is that when I select "Map" as the Fixed Frame in Global Options in RViz, I only get my Kobuki TF data and not my Phab2 Pro's TF data. I've read somewhere that it has to do with making a transform, but I don't know how to do that. Also, I need easy instructions because I'm not advanced in ROS, but I'm not new either. I'm in the middle. I will post screenshots soon, too. I am running ROS Kinetic on an Ubuntu laptop (I think 16.04; whatever the latest version is). I'm also running Tango ROS Streamer on my Phab2 Pro, then running RViz with a special .rviz file so that I can see what the Phab2 Pro is capturing in real time. The error is: No transform from [laser] to frame [map]

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2016-06-24 15:12:24 -0500 commented question Got Kobuki, got errors on an Ubuntu laptop running ROS Kinetic

Bump!!!!!!!!!!!!!!!!!!!!!!! I really need help ASAP!!!!!!!!!

2016-06-22 15:14:51 -0500 asked a question Got Kobuki, got errors on an Ubuntu laptop running ROS Kinetic

I just got my Kobuki a few days ago so I was happy to play with it. But then I got an error while trying to catkin_make the Kobuki workspace within Turtlebot. The error first was:

CMake Error at /home/ayan/turtlebot/devel/share/ecl_exceptions/cmake/ecl_exceptionsConfig.cmake:141 (message):
  Project 'kobuki_keyop' tried to find library 'ecl_exceptions'.  The library
  is neither a target nor built/installed properly.  Did you compile project
  'ecl_exceptions'? Did you find_package() it before the subdirectory
  containing its code is included?

After removing kobuki_keyop, and fiddling with some other stuff (including to get Sophus and put it in the Kobuki directory), I got the error

CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkin_workspace.cmake:95 (message):
  This workspace contains non-catkin packages in it, and catkin cannot build
  a non-homogeneous workspace without isolation.  Try the
  'catkin_make_isolated' command instead.
Call Stack (most recent call first):
  CMakeLists.txt:63 (catkin_workspace)


-- Configuring incomplete, errors occurred!
See also "/home/ayan/kobuki_catkin/build/CMakeFiles/CMakeOutput.log".
See also "/home/ayan/kobuki_catkin/build/CMakeFiles/CMakeError.log".
Invoking "cmake" failed

Then, when I ran catkin_make_isolated, I didn't get an error. I got:

==> Generating an env.sh
<== Finished processing package [1 of 1]: 'sophus'

but then when I run catkin_make, same error. Please help me ASAP!
Edit: I would also like to run RViz with my Kinect and Kobuki (Kinect works fine with RViz and OpenNI_Launch, I believe) and would like to run minimal.launch because of that. I would really like to do SLAM and navigate! I'm just a beginner.
Edit 2: Now my Kinect's not working when I plug it in to power and USB. Great. Probably a faulty wire.

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2016-06-20 13:16:57 -0500 commented question Going to get Kobuki-- need help

Bump!!! I'm gonna get it soon, so I need help.

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2016-06-17 05:52:55 -0500 asked a question Going to get Kobuki-- need help

Hello! I'm getting a Kobuki base soon (today) and I want it to navigate (using preferably RViz) using my Kinect (which works with rtabmap) so can anyone tell me drivers that might work? For now, though, I have an iRobot Create 2, which will be returned. I also have an Ubuntu laptop running ROS Kinetic. I also found a US retailer for Kobuki which is http://dabit.industries/ because of the $183 shipping from the official site from China!!!!!!!!!

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2016-06-15 05:54:39 -0500 edited question How do you use the iRobot Create 2, an Ubuntu laptop running ROS Kinetic and a Kinect v1 together?

If you know about TurtleBot, scroll down to see my errors when trying to run TurtleBot.
How do you use the iRobot Create 2, an Ubuntu laptop running ROS Kinetic and a Kinect v1 together? I tried so many different methods and they all failed! I have very, very bad knowledge with ROS because I got it a few weeks ago. Can some please help me ASAP???!? And I also want to run RViz and navigate around the house. Thanks! (By the way, I also have rtabmap-ros for Kinect and that works really well, but the Create 2 does not!)
Edit: I also have tried the TurtleBot software, fail--- and some other ones--- fail.
Edit 2: I have tried on a Windows Desktop not running ROS and it works perfectly!
Edit 3: I think most of the errors I get are from catkin_make where I run into cmake errors and stuff like "Package not found: ros/time.h" and some other errors. I also have a Kinect 2 I can work with if my Kinect 1 fails, but the iRobot Create is still not working!!!
Edit 4: I tried catkin_makeing the Turtlebot things (I don't know if it's compatible with a Create 2), but all I get is:

This workspace contains non-catkin packages in it, and catkin cannot build
  a non-homogeneous workspace without isolation.  Try the
  'catkin_make_isolated' command instead.

Then, when I run catkin_make_isolated I get:

error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.

Then tons of more errors. I tried running it with both of the options above, but all I get is:

catkin_make_isolated -std=gnu++11
usage: catkin_make_isolated [-h] [-C WORKSPACE] [--source SOURCE]
                            [--build BUILD] [--devel DEVEL] [--merge]
                            [--install-space INSTALL_SPACE] [--use-ninja]
                            [--install] [--force-cmake] [--no-color]
                            [--pkg PKGNAME [PKGNAME ...] | --from-pkg PKGNAME]
                            [--only-pkg-with-deps ONLY_PKG_WITH_DEPS [ONLY_PKG_WITH_DEPS ...]]
                            [-q] [--cmake-args [CMAKE_ARGS [CMAKE_ARGS ...]]]
                            [--make-args [MAKE_ARGS [MAKE_ARGS ...]]]
                            [--catkin-make-args [CATKIN_MAKE_ARGS [CATKIN_MAKE_ARGS ...]]]
                            [--override-build-tool-check]
catkin_make_isolated: error: unrecognized arguments: -std=gnu++11

Edit 5: I have ROS Kinetic Kame so that's probably why nothing at all is supported. I would really like some updates if TurtleBot can work with Kinetic Kame, because it's not for me!
Help please?!??!!???
Edit 6: I'm getting a Kobuki (hopefully later on today) and I made a new forum. Thanks!

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