All Questions
45,466
questions
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eprosima::fastcdr::Cdr::DDS_CDR
i am trying to build micro ros agent package on ubuntu 22.04 working on ros2 humble but this error appears /home/boxtech/ros4_ws/src/micro_ros_agent/micro_ros_agent/src/agent/graph_manager/...
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8
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I want to able to reduce the number of joints in URDF and still be able to achieve the 4 positions . How can it be done?
Reduce from 5 joints to 4 joints in uRDF and still be able to achieve 4 positions.
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6
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How to reach goal pose with less than 5cm of error in Nav2
I'm trying to use nav2 to move a diff-drive robot to a follow a path to a goal pose with less than 5cm of distance error and 5 degrees of angular error. Unfortunately, all local plannars I have tried ...
- 54
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5
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1
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4
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Does the mock hardware component "mock_components/GenericSystem" provided by ros2 control support the 'velocity' command interface?
When I change the command interface from 'position' to 'velocity' in Moveit2 tutorial (MoveIt Setup Assistant — MoveIt Documentation: Rolling documentation), I found the crux of the problem is the ...
- 33
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4
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ROS2, Create3, Node subscribes to topic /tf but cannot receive data
In ROS2 for the iRobot Create3.
I created a node and subscribed to the topics /tf and tf_static. It seems to work because I can compile it and subscribed to other topics without any problems. But /tf ...
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answers
12
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ROS2 rclpy subscription problem
I have a following problem: I am trying to subscribe two topic (image and pointcloud) and once the program detect falling edge from gpio pins it should publish the image and point cloud. However the ...
- 1
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answers
4
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symlink-install with easy_install python warning
I have encountered an issue when I try to use --symlink-install when I try to build my packages with colcon.
This is my scenario:
When I ...
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answers
6
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Safely using a "switching power supply" with 220V raw wire input [closed]
This article features something called a "switching power supply", which transforms a 220V AC current from regular european power outlets to a DC power output, which can then be used to ...
- 111
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4
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Octomap Mapping Floor Issue
I am new to ros2 navigaiton. I am trying to create a map using Octomap pkg which I can use in Nav2.
The point cloud data also includes the floor which causes the map to consider it as an obstacle. ...
- 1
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answers
5
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Ros2 Iron, Tutorial Webots, Setting up a robot simulation (Basic) Connection Issue
Following the basic tutorial with the goal to use webots with ros2, I've run into the following problem:
...
- 1
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answers
11
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Porting an exsiting Python Project to ROS2
I have a conceptual question about using ROS2 with other projects that I haven't been able to find a satisfactory answer for.
I work with a few complete systems written in Python that are self-...
- 11
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answers
8
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Robot localisation ROS2 outputs NaN, but covariance matrix looks good
I am trying to use this package: https://github.com/automaticaddison/robot_localization
to fuse Odometry and Imu for a mobile robot, in ros2 humble.
here my .yaml file
...
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0
answers
19
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Issue with Real Time Arm Servoing on Franka Emika Panda Robot using MoveIt!
Description:
I am a beginner in ROS 1 programming and I am encountering an issue that I hope to resolve with your assistance.
I am attempting to implement Real Time Arm Servoing (Link) on my Franka ...
- 13
1
vote
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answers
14
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Modular robot (canopen base+ universal robot arm) controller_manager setup for different hardware interfaces
I have a modular robot composed of a mobile base and an arm. The mobile base is driven with two CANopen-driven joints, while the arm is an UR10e universal robot. I’m able to drive BOTH the mobile base ...
- 11
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answers
10
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rviz marker error"For frame [/world]: Frame [/world] does not exist"
everybody.I'm working in SVO using rviz to visualize and I encountered a problem.
I was using two markers to show my keyframes and features in SVO, but rviz showed 'status error' and reported ...
- 1
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votes
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answers
11
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Open-RMF Plugin Error
I am learning Open-RMF and have been trying to create my own demo.
So far I did everything right but cannot integrate the slotcar plugin, which is used to navigate ...
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answers
12
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E: Unable to locate package ros-humble-tf-transformations
I tried to install the library with sudo apt install ros-foxy-tf-transformations and sudo pip3 install transforms3d to use ...
- 3
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votes
1
answer
7
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ros_gz_sim build from source error with missing lib gflags
While building ros_gz from source on docker with ROS 2 humble, I encountered the following error, so I thought of posting the solution in case someone has the same ...
- 91
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0
answers
20
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New Gazebo Tutorials [closed]
I want help with some resources to learn Gazebo Garden OR Harmonic. Particularly, with the Python API. Sample code, tutorials, or book; anything that will be of help. The official documentation is the ...
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answers
11
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ROS2 Wrapper for a Python-based Sensor
I have a force sensor that I want to use with ROS2, however, I don't know how to create a ROS2 wrapper for it. All I found was this tutorial that creates a ROS1 wrapper. Below is a snippet of the ...
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answers
3
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Why is my Leddar Vu 8 sensor dies on roslaunch?
I have Leddar Vu 8 usb model. I installed the LeddarSDK as given in https://leddartech.com/app/uploads/dlm_uploads/2021/08/Install-Guide_SDK-Using-LeddarTech-Sensors-in-Linux_V1.0_EN-2.pdf
My specs:
...
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0
answers
5
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Sequence capability for Robotic Arm with OMPL and Move Group Python Interface
I'm using ROS Noetic and specifically MoveIt Move Group Python Interface to perform some movements with a robotic arm for palletizing purposes. In the environment, there are various static obstacles ...
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answers
5
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ROS turtlesim reporting turtle image spawn
ROS Melodic used at least 14 turtle images in turtle_frame https://github.com/ros/ros_tutorials/blob/melodic-devel/turtlesim/src/turtle_frame.cpp, is it possible to have ROS report which image is used ...
- 1
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votes
1
answer
24
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hardly to let my own gazebo model stay still
In my original urdf file,I modified the mass value to let my model seem to stay still.Now I notice the imu is shaking in rviz,so I turn to "view contacts"in gazebo,the green light is shaking ...
- 3
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answers
7
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How to Extend the Reach of Global Path Planning in Nav2 for Large Open Areas?
My operational environment is a vast bayland terrain, where the robot needs to navigate effectively over long distances between waypoints (In Red).
Issue Description:
My global planner struggles to ...
- 156
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answers
17
views
Segmentation fault in interactive_slam
I was trying to run interactive_slam on my WSL, since I used docker before but it had extremely poor performance (3FPS). So, I compiled everything just like I did on docker with ROS noetic, but when ...
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answers
4
views
Building ro2 from source failed due to tf2_ros_py
I'm trying to build ROS2 from source on ubuntu 20.04 on parallels on apple silicon, but I'm getting this error
...
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votes
0
answers
10
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Nav2 only sending rotating commands
As stated in the title, I'm currently working on a school project where we are using Nav2 to get a differential drive robot to autonomously navigate a given area. We are successfully mapping the ...
- 1
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votes
0
answers
7
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Adjusting Path Planning Origin in ROS2 Nav2 for a Long Vehicle
I am working with ROS2 Nav2 and the SMAC planner for a long vehicle (a truck), where the planning origin’s traditional placement at the geometric center (base_link) causes some practical issues in ...
- 156
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answers
13
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ROS 2 Humble RQT image view doesnt appear
I recently installed ROS 2 Humble again and i used to open RQT to view an image topic from a camera used in a gazebo simulation, but after this installation the view option doesnt appear in RQT ...
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answers
13
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Inquiry Regarding Support for Intermediate Certificates in SROS 2
I am currently exploring the safety features of SROS 2 to ensure safe communication within the robotic system. One of the security aspects that interests me is the support for intermediate credentials ...
- 1
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answers
8
views
Why is the `retrospective_penalty` not included in the SmacPlannerHybrid::dynamicParametersCallback method?
When writing a pipeline that sets planner server parameters at runtime I realized that the retrospective_penalty cannot really be changed at runtime. For example I ...
- 1
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0
answers
8
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find_package() of exported dependencies builds with --merge-install but not isolated
Running ubunut 22.04, ros humble from binaries.
I have written 3 packages. Two containing libraries and the third an executable. I have split the libraries just because they were semantically ...
- 134
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votes
0
answers
2
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ROS Noetic & MoveIt: use pilz_industrial_motion_planner CIRC movement in pyhton script
I'm trying to use pilz_industrial_motion_planner with CIRC as planner_id in order to execute a circular motion given the end point and the mid point of the trajectory.
I have set the midpoint as ...
- 1
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0
answers
5
views
Compensate magnetometer tilt with the IMU in ROS
For outdoor navigation,
I have a magnetometer driver node publishing sensor_msgs/msg/MagneticField messages in mag_link frame (fixed frame relative to base_link)
I have an IMU driver node publishing ...
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votes
0
answers
7
views
LiftDrag plugin for Gazebo garden parameters
I'm trying to simulate (accurately) a Cessna 172 using Gazebo garden, which implies using the LiftDrag plugin to simulate the aerodynamic forces. Looking at other models such as zephyr with ardupilot ...
- 1
0
votes
1
answer
17
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ArduPilot plugin for gazebo documentation
i'm trying to simulate a cessna 172 using Gazebo garden, and i'd like to control it within the simulation using the ArduPilot plugin. I've seen on the official websites some examples using the zephyr ...
- 1
1
vote
0
answers
6
views
MoveIt2 does not recognize when goal pose is reached (MoveIt2: Completed trajectory execution with status TIMED OUT)
Summary
MoveIt2 does not seem to recognize if the robot reached the goal, resulting in the robot waiting in the reached goal pose until MoveIt2 times out.
Setup
We are using a UR10 in combination with ...
1
vote
2
answers
28
views
How to correctly change the command interface of the panda robot arm from 'position' to 'velocity' in the Moveit2 website tutorial
I followed the official Moveit2 website to create the panda robot arm and successfully ran demo.launch.py:
MoveIt Setup Assistant — MoveIt Documentation: Rolling ...
- 33
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votes
0
answers
3
views
While the executor is running, where should the process of reading UART data occur? (callback? loop including spin?)
I'm using micro-ROS.
The executor is running through spin, and the callback function is triggered by timer conditions to deliver messages.
I wanted to add lidar data via UART here.
However, I noticed ...
- 11
-1
votes
0
answers
5
views
Realistic ROS robot motion can enable robot models in Unity to move together in a coordinated manner
Implementing the conversion of robot coordinates to Unity coordinates and real-time position publishing can enable the robot model in Unity to follow the motion as well.
- 1
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votes
0
answers
7
views
Octomap Saving Map Extension - ROS2
After creating the map, I tried to save it using the following commands:
...
- 1
0
votes
1
answer
12
views
Errors while building from source RQt for Arch Linux
I'm trying to install RQt for ROS2 Iron something from the official guide https://docs.ros.org/en/iron/How-To-Guides/RQt-Source-Install.html
I get this error
...
- 21
1
vote
1
answer
19
views
ROS2 Error while installing dependencies (rosdep)
I successfully compiled and installed ROS2 on Arch Linux. Everything is working fine (surprisingly!). As I initialized rosdep I got this error:
...
- 21
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votes
0
answers
23
views
Collision checking from joint state
I'm trying to check collision from a specific joint configuration. I followed the Planning Scene ROS API tutorial to add a collision box and Planning scene to check for robot collisions.
With my code ...
- 1
0
votes
1
answer
18
views
Persistent "Goal State is in Collision" Error Despite Disabling Collisions
I am working with the MoveIt Task Constructor to set up a robotic task sequence and am encountering a persistent collision detection issue despite explicitly disabling collisions for certain links. I ...
- 1
1
vote
1
answer
22
views
Smartmicro Radar ROS2 Package Ethernet Trouble
I'm working with a UMRR-96 Type 153 radar. I am having trouble using its ROS Package.
My hardware is good since there are no problems when I use the radar with its own application. It works with both ...
- 13
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votes
0
answers
12
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Shutdown all nodes using rclpy
shutdown alll nodes
Above talks about shutting down nodes in rospy how do I do proper clean up in rclpy.
I tried:
...
- 15
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answers
7
views
Cancel previous callback made from subscription ROS2
I'm new to ROS2 and I don't really know how to do this is in a clean way.
I'm in this condition
...
