Questions tagged [ros]
ROS (Robot Operating System) is a free, open-source robot software framework initially developed by Willow Garage. And now under the maintenance of Open Robotics.
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robot_localization GPS causing large drift/covariance spike
I am trying to implement the dual ekf navsat example on my real-world robot. The local EKF with wheel odometry and IMU works quite well and has no issues. As far as I can tell, my global EKF ...
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How to record all topics in a rosbag using rosbag API (rosbag::Recorder)
I am trying to create a recorder logging all topics into a rosbag using ROSBAG C++ API
The record should be eventually enabled/stopped by some external topic.
The examples show how to log specific ...
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Implementing PID on a line following bot using turtlebot
I am using ROS melodic,turtlebot 2 on Ubuntu 18.04.
The idea is to create an environment consisting of lines as a path (slightly curved), and to program the turtlebot to follow the lines. Basically, a ...
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error: no type named ‘type’ in ‘struct std::enable_if<false, void>’ when calling rclcpp::create_timer()
I am trying to convert a piece of code written in ROS1 to ROS2. I am having trouble with the following line, which instantiates a ros:::Timer object:
in ROS1:
...
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1
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92
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ROS/ROS2 on buildroot
I would like to run ROS or ROS2 on an Odroid C4 board with a Buildroot base OS (kernel 6.4). I know that it is possible to run it with Yocto but I have not seen any Buildroot packages.
I cannot switch ...
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Could I create multi dynamic_reconfigure in one package in one CMakeList？
I have two *.cfg files, each one working with its executable process.
The CMakeLists:
...
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Generated "__rosidl_generator_py.so" files issue
I've created a custom distribution using Yocto.
On it I tried to build "builtin_interfaces" from source (I use this example for reproducibility).
I'm able to run cmake and make but then I ...
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RViz cannot display robot arm until I enable show robot collision
I followed the tutorial to display a robot arm in RViz. However, Rviz displayed nothing until I enable the "show robot collision" feature in MotionPlanning-Scene Robot
Can anyone tell me how ...
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Error RVIZ extrapolation into the future on the same machine
I get the following error when trying to view my RPLidar A2 scan in rviz2. It’s on a differential drive robot controlled using Odrive and ros2 control using Articulated Robotics. I am running ...
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RVIZ Transform error
I am working on a custom spherical robot with two motors which controls the two pendulum and one motor which drives the robot.
When RViz is launched: The Global option > Fixed frame is set to ...
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How to get all ROS log messages from rostest?
I am trying to debug a problem with a rostest that it is probably failing due to multithreading, as the result of the test is always different.
That aside, my problem is that I cannot get to see the ...
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robot_localization not fusing imu data
According to the documentation in : http://docs.ros.org/en/noetic/api/robot_localization/html/state_estimation_nodes.html
I was able to transform the imu data header fram from "imu_link" ...
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1
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328
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Error when compiling cv_bridge in Raspberry Pi 4B with Raspbian buster and ROS Noetic
Im using Raspberry Pi 4B, with Raspbian Buster and ROS Noetic. When I tried to compile my catkin ws with a cv_bridge package I got the following error:
CMake Error at vision_opencv/cv_bridge/...
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645
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robot_pose_ekf won't publish any messages
I am having trouble getting the robot_pose_ekf package to publish messages. I launch it with this launch file.
...
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unable to integrate local planner plugin into move_base
I am trying to integrate my local path planner plugin into move_base. On launching the modified ...
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1
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Set global_frame and robot_base_frame parameters for costmap_2d::Costmap2DROS object
I am trying to use a costmap_2d::Costmap2DROS object to read the occupacy grid being published on the /map topic. How do I ...
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Rviz Status Error in Costmap: Update area outside original area
“update area outside of original map area” is the error I get when visualising the topic /move_base/global_costmap/costmap. The cost map displays correctly, there is nothing on google or the docs to ...
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How to setup CLion for ROS remotely?
I know how to set up CMake and Toolchain remotely using ssh through official wiki.
Does anyone know how to configure a remote <...
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1k
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moveit! trajectory execution aborted
I'm trying to send a custom arm to a pose through moveit_commander_cmdline.py, it fails after sending to the said pose using " go default_pose" and returns an error.
...
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1
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459
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UR5 Visual servoing(image based, eye in hand)
I am implementing IBVS on a UR5 using ROS. The algorithm works very well in linear X, Y and Z and omega Y. When I try to add a fifth axis(omega X or Omega Z), the robot jerks heavily and goes into ...
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Real-time python reinforcement learning library
I'm looking for a reinforcement learning library that can be used for real-time robot control. What I first had in mind was ROS to describe the robot, Mujoco to simulate physics, and OpenAI gym to ...
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Have you done take-home robotics(ROS) coding test in interviews?
Have you done take-home robotics(ROS) coding test in interviews?
Do you want to share the coding test instructions with me? or point me in the right direction where I can find some to practice?
I'm ...
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122
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How to use MoveIt and ros_control (from setup assistant) to control Gazebo robot?
I've noticed that in the MoveIt setup assistant, there is a "ROS Control" that auto-generates 2 files:
- ros_controllers.yaml
- ros_controllers.launch
I wanted to ask if it was possible to use these ...
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Writing IMU accelerometer data into as twist messages into cmd_vel
I am reading accelerometer data from the wiimote /wiimote/state topic.
A sample of the data I'm working with is as follows:
...
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ROS: joint_state_publisher dies when used in remote launch file
I've been trying to run robot_state_publisher and joint_state_publisher on a remote TX1 running Ubuntu 16.04 and ROS Kinetic. When running the node from a local launch file (manually ssh into the ...
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41
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DSO_ROS is not giving right coordinates after taking turn (left/right)
Hi all ,
i got stuck in a problem and really need your help.
Goal:
I want to move little Toy vehicle autonomously (localization and mapping) and want to get distance covered by vehicle using DSO in ...
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144
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ROS: TurtleBot3 motors runs 60 seconds after message is seen in topic /cmd_vel
I am running ROS Kinetic, on a Turtlebot3 Burger with a Raspberry Pi3.
The goal here is to remotely control the Turtlebot from another Raspberry Pi. The remote controller Pi sends movement ...
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179
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Which Kinect to use for robotic arm pick and place application with object detection?
I am building a robotic arm for pick and place application. The robot is going to recognize several objects using the RGB feed from Kinect (will use a model such as YOLOv2 for object detection, ...
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Kalman filter for slow ground vehicle with RTK
I have been using dual RTK receivers for my tractor projects. This gives me reliable position, heading, and tilt at low rates (10 Hz). I recently began working with an INS (an Advanced Navigation ...
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PixHawk I/II not working in 'Rover' mode (firmware issue?).... HELP!
We are working in a new agricultural rover, and we opted for PixHaw-II+ROS+MavLink platform as a good control alternative. However, our project is stuck as the PixHawk seems to work only when it is ...
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107
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rtt-exercise building error-orocos-toolchain
I am using ros kinetic in ubuntu 16.04. My first error is:
...
user14148
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257
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Controls Project, Inverted Pendulum. Design issues
I am developing an inverted pendulum that uses a differential drive robot as base. The goal is to create a benchmark to practice my control using ROS, so I can implement what I learn on the Modern ...
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Controlling Pepper using ROS
I am trying to implement FastSLAM 1.0 and I am using sensory and control data acquired from Pepper via ROS to evaluate my implementation. However I am having major issues when I try and control Pepper'...
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Advise on ROS move_base costmap footprint not connected error
I'm using ROS indigo in my project and all the nodes and visualisation (Rviz) seems to be functional when I launch the program using roslaunch. Here are the sensors used in the scooter:
Hokuyo Lidar
...
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ROS/Gazebo: URDF Error: No valid hardware interface element found in joint
I am fairly new to ROS and Gazebo. I have posted this question on the ROS/Gazebo forums, but they appear to be dead.
I am using ros-kinetic and gazebo7.3 on Ubuntu 16.04. I have been following this ...
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Waiting for the r_gripper_sensor_controller/gripper_action action server to come up
I started to use ROS hydro (Robot Operating System) and roscpp.
I tested some examples to move the gripper of pr2 in Gazebo (especially the code in : http://wiki.ros.org/pr2_gripper_sensor_action/...
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967
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Gazebo laser plug-in fails to publish scan results
I have added hokuyo laser plug-in to mu urdf file. I successfully launched the robot in gazebo and done required changes to visualize it in rviz. I didn't get any error but the laser scan results are ...
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874
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Acceleration formula for a differential steering robot
I have the formulas to derive the RPM's of each wheel from the robot's linear velocity.
Now, I am trying to do the same thing for the acceleration (mainly angular acceleration).
For linear ...
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Error when installing ROS Neotic on Ubuntu 20.04
When I try following the ROS wiki guide to install the ROS Noetic on my Ubuntu 20.04 (It's WSL), I met with this error about the key setting
up.
...
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How do I use catkin_download_test_data() correctly to run rostests?
I have a working rostest which I was running against a bagfile of image data. Earlier I had stored it in my git package but since its a big file I am thinking of storing the bag file in cloud and ...
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Unknown frame map error(I know I have to be specific but I just don't know what the problem is..)
I am trying to move code (based on ros navigation) from jetson nano to jetson orin. In the jetson I have installed docker and version of ros is noetic both.
the code was successful and able to ...
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ROS: Execute action for every waypoint along moveit path
A robot should move along waypoints and operate on a state in parallel, say print a state for every waypoint.
Given:
...
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How to adjust the frequency of YDLiDAR X2
I am using YDLiDAR X2 within a ROS environment.
According to the datasheet, the voltage must be varied to adjust the frequency of the LiDAR. However, I apply the same voltage every time, but on some ...
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How to update the cost for different obstacles with different inflation radius in the inflation layer?
I want to calculate the cost values of surrounding grid cells for different obstacles with different inflation radii in the inflation layer of the costmap_2d package. This is to ensure that the ...
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1
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Gazebo urdf model falls through the ground
I built a model with Solidworks and exported it as urdf. I believe the exported file is fine as I can insert it in the gazebo world. However, once I insert it, it falls down through the ground. Could ...
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Trying moving arm using cartesian waypoints
I am trying to move my arm using providing Cartesian way-points. I am generating Cartesian way points and feeding the arm to move on those using moveit. When I try to move it using only position ...
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Trouble with running ros1_bridge with external robot using Docker
Show activity on this post.
for a project, I have a robot that is running Ubuntu 18.04 with ROS1 Melodic and a desktop that is running Ubuntu 22.04 with ROS2 Humble. In order to use the ROS1 bridge I ...
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ROS Tutorial issue
I've been learning about ROS using this url ⇒(http://wiki.ros.org/ROS/Tutorials).
And doing so I have a issue with this chapter ⇒(http://wiki.ros.org/ROS/Tutorials/reading%20msgs%20from%20a%20bag%...
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Packages for turtelbot2
i am new to ROS world and i have to find ROS1 and ROS2 packages for turtelbot2 and compare them (what changed from ROS1 to ROS2), what are those Packages and where can I find them?
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Is it possible to install Ubuntu 20.04 in MacOs M2 chip?
I am using ubuntu 20.04 in UTM virtual machine, but gazebo is not properly working. So I decided to install ubuntu 20.04 as dual boot but unable to make in M2 chip, any source from where I can install ...
