All Questions

Filter by
Sorted by
Tagged with
0 votes
0 answers
3 views

ROS2 C++ custom node using image transport not subscribing to a topic

I am trying to write a custom ROS2 node in c++ that subscribes to /depth_to_rgb/image_raw coming from Azure Kinect of type 'sensor_msgs/msg/Image' topic. Then I am trying to get a depth value at a ...
karlym's user avatar
  • 1
0 votes
0 answers
9 views

no difference between Fast DDS Server Listener and simple listener

How to make the listener connected to DDS server respond and the listener not connecterd to DDS server not respond ROS Humble Fast DDs Tutorial says the listener not connected to DDS server should not ...
나이승민's user avatar
0 votes
0 answers
4 views

how to export sdf file from onshape?

I had problems extracting urdf file from solidworks, because I am working on a delta robot (closed chain). So I redesigned the robot in onshape which I read that it can be extracted directly as sdf. ...
issam_ks's user avatar
-1 votes
0 answers
4 views

ros2 launch file not found [closed]

I don't know my code has some problem.
James Lv's user avatar
0 votes
0 answers
8 views

Blender Phobos Export URDF AttributeError: 'NoneType' object has no attribute 'name'

I am trying to use the add-on called "phobos" of version 2.0.0, working on Blender of version 3.3.12, to convert a complex robotic arm model into URDF. I did all the steps to define the ...
Hasan Shadi's user avatar
0 votes
1 answer
13 views

Which ROS for Ubuntu 23.10 on RPI5

I got my hands on a RPI5, only to discover that at least ubuntu 23.10 is required because of the new chipset. How would I go about installing a ros version on ubuntu 23.10. Would I have to build from ...
Can Altineller's user avatar
0 votes
0 answers
10 views

ros-foxy-serial no longer available?

I wrote a ros2 project a while ago to communicate with arduino using ros serial library which I think was ros-foxy-serial. It is simple rclcpp project to read data from arduino using ...
Kyuhyong You's user avatar
0 votes
1 answer
19 views

ros2 spinning problem

i'm trying to transform ego-planner-swarm from: https://github.com/ZJU-FAST-Lab/ego-planner-swarm to ros2... at the begging of code we have spin(node) ...
arash mokhtari sherkat's user avatar
0 votes
0 answers
12 views

Stuck with Cmake configuration for a ROS2 cpp node that builds a library within itself. This ``library'' calls multiple other libraries within itself

Ubuntu 22.04, ROS2 Humble Hi, To port my research project to ROS2, I have been trying to make a native ROS2 implementation of ORB SLAM3 following ROS1 native implementation done by thien94. ...
Azmyin Md. Kamal's user avatar
0 votes
0 answers
11 views

Knowing whether the robot is delocalised or not by observing relevant data

The way that we know if a robot is delocalised is by opening RViz and observing the laser's scan data with respect to the static map on the ...
user37666's user avatar
0 votes
0 answers
15 views

Logitech F710 not echoing in ROS Humble

I have a working Logitech F710 gamepad working on a Raspberry Pi 4 running Ubuntu 22 RTOS Humble. Jstest shows the joystick is working. I have added the telepop-twist-joystick node and it loads ...
Alan Federman's user avatar
0 votes
0 answers
12 views

how to use gazebo ackermann plugin ROS2 Humble

I'm working on a urdf model of an ackermann car with 4 wheels. I want to use the ackerman gazebo plugin, in the github i found an example of usage that is the following: ...
Gaetano Pispisa's user avatar
0 votes
0 answers
9 views

use frame_prefix or namespace for multiple robots' frames? and need to create transforms between them

I'm working on a multiple robots system, these robots have same urdf file, so same transforms. My question is how to control them seperately, while I can also get their relative position. I'm using ...
jh Z's user avatar
  • 1
0 votes
0 answers
9 views

python3-catkin-pkg-modules dependency apparently not available for Ubuntu 22.04 Jammy when building ROS2 from source

I have been following the guides at Using ros1_bridge with upstream ROS on Ubuntu 22.04 and Ubuntu (source) to build ROS2 on Ubuntu 22.04 Jammy. I've tried this for Iron and Humble. When I try for ...
PDW's user avatar
  • 1
1 vote
3 answers
44 views

How can I determine the necessary joint angles given the position of this UR-3 robot?

I'm trying to perform inverse kinematics on this robotic arm with 6 DoF. However, I'm not exactly sure how to start. I know a technique when the last three joints make up a spherical wrist, however, I'...
ARJ's user avatar
  • 11
1 vote
2 answers
39 views

how to move turtlebot3 manually?(really stupid question)

What I mean by this is how do I move it exactly 1 meter forward or spin 3 radians around z axis (for example)? All the tutorials seem to talk about teleop, but that's not what I need.
rootSh4rp's user avatar
0 votes
0 answers
7 views

3D Camera for small objects

I am working on a project in which I have to extract 3D geometry of small textured things (think, a small rock or a grain of rice). I guess normal 3D cameras won't work for this, since they seem to be ...
Avatrin's user avatar
  • 101
0 votes
0 answers
13 views

High speed, high precision motors for a Spherical Parallel Manipulator

As the title says, I am looking for motors suitable for my Spherical Parallel Manipulator. The Spherical Parallel Manipulator will have a camera (likely a DLSR) mounted to it. The motors need to be ...
Mike's user avatar
  • 1
0 votes
0 answers
53 views

[slam_toolbox]: Failed to compute odom pose

I'm trying to run my simple robot in the Flatland simulator, ROS2 Humble. The problem occurs when I try to execute the command ...
Tomas Novotny's user avatar
0 votes
0 answers
11 views

nodes have a lot of cpu and mem usage on launching, and cause them be killed

I'm trying to launch some simple nodes on RaspberryPi 4B 4G, Ubuntu Server 22.04, which include a robot_state_publisher, a Lidar driver, a static_transform_publisher, and a wheels control node wrote ...
jh Z's user avatar
  • 1
0 votes
0 answers
17 views

MoveItErrorCode doesn't correspond with real reason of failure

ROS2 Humble, Ubuntu 22.04.3 LTS Hi, I'm facing a problem with MoveGroupInterface when I'm trying to create plan for join goal movement. The problem is that the corresponding MoveItErrorCode doesn't ...
Matúš 's user avatar
-2 votes
0 answers
13 views

Access to coordinate information on the map [closed]

How can I get the (x, y) coordinate data of the black lines on the map I created with Lidar?
furkancetin's user avatar
0 votes
0 answers
13 views

Why am i getting a PEAK_RETURN_CODE_NOT_FOUND Error when trying to start a camera using ROS and SSH?

I am working on a project where I want to control sensors and a camera connected to an Ubuntu 20.04 system. To avoid using the terminal on the Ubuntu system directly, I want to use buttons connected ...
Thilo Engel's user avatar
0 votes
0 answers
4 views

Velodyne VLP-16 sensor driver - Ros2 on Windows 10

I just installed ROS2 foxy desktop on my Windows 10 PC, I am going to install velodyne driver and use Rviz to visualise the data from my Velodyne VLP-16 sensor. but i can not find any tutorial about ...
luan's user avatar
  • 1
0 votes
0 answers
11 views

Error when using Roboteq Controller ROS2 driver

I have roboteq Controller for brushless DC Motor. I would like to use the driver abd the controller with ROS2 humble. I was using this fork https://github.com/DoanNguyenTrong/roboteq_controller_ros/...
Macedon971's user avatar
0 votes
0 answers
8 views

how can i get geomid from all unnamed subnodes

i have a problem. In tutorial you have said, "Note that each dot (.) can be substituted by any number of named or unnamed nodes". But if I use dWebotsGetBodyFromDEF(defname.), I can only get ...
Haolei Tong's user avatar
0 votes
1 answer
28 views

ROS2 - CMake Error - ament_target_dependencies() the first argument must be a valid target name

I created a plugin ConditionNode to use on the behaviour tree to alter some behavior in navigation. It appears that my cmake file has an error when i run colcon build. The error is: Starting >>&...
Lourenço Conceição's user avatar
0 votes
0 answers
17 views

Which version of the PX4 software stack is compatible with ROS Noetic

I cloned the source code of PX4-Autopilot into my ros_noetic_ws and attempted to compile it using the catkin_make command, but ...
Mubahsir's user avatar
1 vote
1 answer
32 views

ROS1 Custom messages generates strange memory graph pattern when using multiple string types

In ROS1 Noetic, I have the following custom message named Test.msg: int32 did string a string b And I have another custom message TestList.mgs: Test[] testList In ...
Enikő's user avatar
  • 11
0 votes
0 answers
16 views

Clarification about a Mecanum wheel

Take a look at the picture of a standard wheel where $f_m$ is the force due to the torque induced by the a motor $\tau_m = rf_m$, the static force $f_s$ and $f_r$ is the driving force causing the ...
CroCo's user avatar
  • 2,453
0 votes
1 answer
19 views

ROS1 Noetic Custom messages - Command line publish char[]/uint8[] support

I have a custom ROS1 Test.msg message which I use in roscpp Noetic: uint8[] a uint8[] b I use uint8[] to represent strings, because I can't use simple string type ...
Enikő's user avatar
  • 11
0 votes
0 answers
15 views

Sending goal without executing plan

I am using ROS Noetic and I want create a script that defines an end position but I only want to retrieve the plan-intermediate-points and save them as a list in an array. I wrote a python file that ...
S.nic's user avatar
  • 3
0 votes
0 answers
16 views

I would like to connect ROS2 humble and MATLAB 2023 b

I am currently working on establishing a connection between ROS2 Humble (running on Ubuntu) and MATLAB 2023b, which are operating on separate networks. I am using RWM as cyclonedds-cpp in both MATLAB ...
Adithya Damarla's user avatar
0 votes
1 answer
27 views

Can set friction direction based on link cordinate in URDF

I'm a beginner at gazebo and ROS. I'm trying to make mobile robot which propels itself using the friction force normal to the direction of wheel. I want to use cylinder as wheel, and set the friction ...
Tama's user avatar
  • 1
0 votes
0 answers
8 views

How to track a ball and move servo? [closed]

I'd like to track a ball in a soccer match with an Android Phone connected via bluetooth to a Servo / arduino.. What I'm asking to you is which tool can I use to track the ball, and which type of ...
stighy's user avatar
  • 101
0 votes
0 answers
11 views

How can I dynamically change a joint defined in the URDF of a robot during runtime to update the parent link?

I'm currently working on a robotics project using ROS and Gazebo, and I'm facing the challenge of dynamically updating the parent link of a joint in the URDF during runtime. My goal is to modify the ...
Karthikeyan Mayilvaganam's user avatar
0 votes
0 answers
12 views

JSON communication issue with ROS2 deserializeJson() returned InvalidInput

Currently I am working on mobile robot, I am using MicroROS ESP32 and Arduino Mega ((## Not that MicroROS does not support Arduino mega board yet##)) . I am using the ESP32 to publish and subscribe to ...
Ibrahim Sheikh's user avatar
0 votes
0 answers
8 views

How can I accurately calculate the robot configuration for a desired cartesian position, given manfuacturing discrepancies?

This is a question I have wrestled with for a while now and would appreciate any advice. I am writing an application which allows programming of different 6DOF industrial robotic arms. The output of ...
Alex C's user avatar
  • 1
0 votes
0 answers
9 views

ROS melodic rviz problem

Hi I'm using ROS melodic and I was trying my own global_planner using plugin method. before changing the base_global_planner to my "own global planner" it was using navfn. After changing the ...
Kevin's user avatar
  • 1
0 votes
0 answers
13 views

One of my ros node emits [Errno 111] Connection refused in docker container

I am currently developing ros packages in docker system. The environment I am using is ROS noetic, Ubuntu focal on a docker container One of my package is failing. I seems it is due to failing to get /...
Jieun Ko's user avatar
0 votes
1 answer
10 views

ros2 launch foo.yaml with composable nodes and setting log level

I'm using a launch.yaml like this: ...
Ken Y-N's user avatar
  • 143
1 vote
3 answers
37 views

Get the name of the node calling a service in the service callback

In rclpy (python), I'm creating a service. How can this service tell the name of the node that is calling it? My goal is to allow the service to check the node-name of the client before performing the ...
Sorawit Inprom's user avatar
0 votes
0 answers
18 views

ModuleNotFoundError: No module named ‘pyzed’

when editing the program in the ros environment,it shows: ...
Qiang Young's user avatar
0 votes
0 answers
11 views

Video streaming over Rosbridge

I'm researching what is the best way to stream video using a video camera, over Rosbridge, to a browser. What are the options out there?
ratchet and clank's user avatar
0 votes
0 answers
31 views

iRobot matlab simulator: robot getting stuck in wall boundaries and not moving anywhere

I am using the iRobot Create simulator in matlab and I used sonar sensors on the robot for wall following but during the autonomous run but it got stuck in a corner. Please help me with this problem I ...
Shekhar's user avatar
0 votes
1 answer
30 views

ROS2: Adding parameters to YAML launch file

How do I use a YAML launch file to pass parameters to a node? The tutorial covers passing parameters using a python launch file but not YAML.
FourierFlux's user avatar
0 votes
0 answers
6 views

How do I disable ros2 launch log handlers?

When I execute my ros2 run command, I get a console log like ...
rms's user avatar
  • 1
0 votes
1 answer
28 views

How to use Yolo as a ROS2 composition component so that images are received via memory sharing?

I am considering setting up a ROS2 system which uses Yolo. I'd like the image sharing between the camera driver and the Yolo node to use memory sharing instead of serializing/deserializing over ROS ...
Vik's user avatar
  • 101
0 votes
0 answers
17 views

Is a central CAN-Bus a reliable solution for controlling robot wheels?

I am working as a student on a 6 wheel robot project and have problems deciding what communication protocol to use for controlling the locomotion system. I was thinking about connecting all the robot ...
curious_engineer's user avatar
0 votes
1 answer
25 views

ROS2 Industrial on Physical Hardware

I'm trying to use ROS2 to control a Fanuc CRX25ia arm. Following the Industrial Training docs, I got it working in Melodic, which was the latest version of the fanuc driver, and was planning to port ...
efoxara's user avatar

15 30 50 per page
1
2 3 4 5
883