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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Can not communicate CS9 in ROS with staubli_val3_driver package

I am trying to implement a Staubli TX2-140 arm in ROS using staubli_val3_driver. I have copied val3 folder to the controller. When I open ros_server VAL3 app in teach pendant I have the following ...
Unai Granados Ormaetxea's user avatar
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2 answers
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ROS install for rplidar

i plan to install ROS in may raspberry 4 8gb question what version of ubuntu support ROS because 20.04.3 is old version and not available in ubuntu website please help me
Badang Zamora's user avatar
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Cannot plan with MoveIt PoseGoal: Unable to sample any valid states for goal tree

I'm using Arduino Tinkerkit Braccio for a project and I cannot get planning to pose goal to work. I'm using KDL as IK solver, RRTConnectkConfigDefault as move_group planner_id This is the relevant ...
caesar753's user avatar
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libp2p as a transport/middleware for ROS

I wonder if there is an initiative or the implementation of libp2p's pubsub feature or the entire network stack as an available transport for ROS? Do you know ...
Andrei Vukolov's user avatar
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How to include a base class without any ROS2 functionality in 2 different ROS2 packages

I have a base class which contains some generic functions and they're not ROS related. An example of this class would be: ...
Mostafa_Hegazy's user avatar
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How to use uwb simulators with Gazebo (Fortress)

I use Gazebo (Fortress) to simulate a robot that is compatible with ROS 2 (humble). The experiment aims at obtaining the robot's self-position estimation using UWB. I would therefore appreciate ...
rryok's user avatar
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Implementing A Nested State Machine using SMACH library

I am trying to implement a Finite State Machine using the SMACH library. My state machine has 3 nested state machines and I don't know where am I making a mistake. Any help is highly appreciated. ''' ...
user39730's user avatar
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Could not get base to fixed frame transform, Lookup would require extrapolation into the future

I'm trying to figure out what is causing this message. I am using an rplidar, and launching like so: roslaunch rplidar_ros rplidar.launch Then I create a transform ...
jgauthier's user avatar
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Cannot import modules when running unit tests with catkin_make run_tests in ROS noetic with python3

I am trying to write unit tests for my ROS node in python and cannot import files from my src/ directory even though I believe I have configured everything correctly. I will walk through my problem to ...
jheaton's user avatar
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How can I differentiate between a dynamic obstacle and a static obstacle on local_costmap?

I'am a starter on ROS. I'am making my own point follower, a robot that follows a "clicked_point" in a map. So, currently, I'am stopping my robot if anything is too close to it, but I wanted ...
defend's user avatar
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This robot has a joint named "joint" which is not in the gazebo model

I am using the following method in https://answers.ros.org/question/223196/using-gazebo_ros_control-with-sdf-instead-of-urdf/ to actuate a 2D Gimbal model using the ROS Control Plugin. However, the ...
Calvin's user avatar
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1 answer
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Mocking ros::Time::now in rostest/gtest

I am running the tests for my ROS C++ node using rostest/gtest. Currently I have a problem where I have a class method that I need/want to test that out of date data based on the value of ...
Ricardo Marques's user avatar
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1 answer
54 views

Drone Flight Controller and Firmware that supports ROS2

I am a newbie to Drones, I looked into many articles over the internet to find out which flight controller should I use, but not fully able to understand as the cheap flight controllers like speedybee'...
Ankit Kumar's user avatar
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20 views

Error while installing dr4_driver for ROS1

I'm trying to install the ds4_driver for my ROS Project. I was following the tutorial from http://wiki.ros.org/ds4_driver. In the end, I can't use ...
Cooler Mann's user avatar
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What is the proper way of managing ROS packages during deployment?

I have a robot with all the necessary source files in a ROS workspace. I was told that for security purpose, the robot should only contain the built binaries instead of the source files. How do I make ...
Qing Joe Wong's user avatar
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1 answer
65 views

Couldn't find executable named teleop_twist_keyboard.py

I tried to control my bot using teleop_twist_keyboard.But I just cannot run teleop_twist_keyboard.py.Having examed the package,I thought I install the package correctly.I just cannot find out the ...
yz x's user avatar
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angular command on /cmd_vel results in linear robot motion

I published a topic just to let the bot rotate through Z-axis with ...
yz x's user avatar
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0 answers
80 views

ROS navigation warn: Timed out waiting for transform from base_footprint to map

Hi I am doing Navigation stack on pepper robot. while doing navigation stack I came across multiple warnings and errors. I rectified few warnings but facing other warnings too. I have searched on ...
sai's user avatar
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Importerror after source devel/setup.bash

OS: Ubuntu 20.04 ROS: Noetic Gazebo 11 I was able to run my project smoothly and just today, I got ImportError from Python. When I run main.py and the first line is ...
Li Donghao's user avatar
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1 answer
38 views

ROS node on container cannot publish to roscore on physical hardware

I have roscore running on a VM (network bridged)hardware. I have another node running inside a docker container. On the master, I am publishing to a topic, and can subscribe to that topic. On the node,...
jgauthier's user avatar
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Ros Bridge Publishing cmd_vel from move_base

I am working on a project which requires slam and autonomous navigation. When in Noetic I have created a map and will use move base because the lidar has plenty of drivers for ROS and not ROS2 so I’m ...
Charlie's user avatar
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Kinect V1 + Raspberry PI 4B + OpenNI

has anyone managed to get the combination ROS Melodic + Ubuntu Mate 18.04 + Kinect V1 + Raspberry PI 4B to work using the openni package? When I run the command ...
Mateus Guilherme's user avatar
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31 views

something wrong with my model with differetial controller

i did not find out where the problem lied in.i tried to control my robot in gazebo,failed.Then i used rviz to see the topic,finding the problem shown in image below. my yaml :controller_joint_names: ['...
yz x's user avatar
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3 answers
113 views

Import "rclypy" could not be resolvedPylancereportMissingImports [closed]

I am trying to follow a ros2 tutorial, and I have a test node working, it's an executable and runs as expected from the terminal. I am now trying to make the turtlesim node draw a circle. I have ...
carolinerooney's user avatar
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1 answer
33 views

Pinpointing object on map upon detection

I am doing slam using rtabmap with a realsense d435i. Alongside, I am running a yolov5 node to detect certain objects such chair, tables etc. Now I want to pinpoint the object's position on map upon ...
Niaz Nafi's user avatar
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10 views

ROS support to onrobot HEX-E QC

I’m currently working on integrating a Hex-E QC force-torque sensor into my ROS-based robotic system. While researching, I came across the ros2_net_ft_driver GitHub repository (https://github.com/...
Darshi Dwivedi's user avatar
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1 answer
61 views

Robot and its previous positions are counted as obstacles

I am trying to use a SLAM package along with the ROS navigation stack and a package called explore_lite, which automatically directs the robot towards unexplored areas. I have most of this working, ...
Joshua L's user avatar
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1 answer
23 views

Simulink - Gazebo CoSimulation setup doubts

I am building a model (of a cable) and a controller in simulink to actuate the end points of the cable in simulink. Since matlab is a numerical simulator and it lacks physics based interactions with ...
vbalaji21's user avatar
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1 answer
37 views

Navigation stack costmaps and explore_lite not working

I am currently trying to use explore_lite with the navigation stack, but I am running into some issues. First of all, the navigation stack seems to be identifying the robot itself as an obstacle in ...
Joshua L's user avatar
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2 answers
56 views

Where to find a circular robot, diameter < 45cm, load bearing >= 30Kg with ROS (1 or 2) installed?

I am looking for a robot with the following specifications: Circular, holonomic robot Diameter <= 45 cm (17.7 in) Load bearing >= 30 Kg (66 lbs) ROS enabled + camera & lidar sensor (...
Yskandar Gas's user avatar
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0 answers
40 views

Messed up service request in ROS2 service node with direct DDS request

I have the problem that I need to communicate with a ROS2 application via DDS from another application that is not a ROS2 application itself, but only uses DDS (Opensplice). I have managed to send DDS ...
T3 K14's user avatar
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0 votes
1 answer
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why did catkin_make never output the execuatble file again after I executed catkin_make_isolated command to compile code

The system is ROS noetic,Ubuntu 20.04.06. Once I executed the "catkin_make_isolated" command to compile my ROS1 workspace. After did it I found the catkin_make command can never output the ...
yethsts's user avatar
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0 answers
12 views

Does N:N connection is possible via WiFi DIRECT on Ubuntu?

I am searching for wireless connection method between robots using WIFI DIRECT in Linux. I read many articles and papers, but I couldn't find any example of 1:N and N:N connections in Linux(especially ...
minseoJeong's user avatar
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1 answer
15 views

Link num type variable with aio Staubli

I want to link a num variable with a aio input variable I receive from ECAT. I am trying to do it in that way, but it does not work. Anyone who know how to do it in SRS? I have defined Vel_cmd and ...
Unai Granados Ormaetxea's user avatar
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1 answer
213 views

rospy.init_node() stuck in loop

I had a problem with initializing a ROS node in python in a larger project. The following minimum reproducible example has the same issue: ...
Kriseiks's user avatar
1 vote
0 answers
34 views

PILZ Industrial Motion Planner claims missing cartesian limits

I am trying to use the Pilz Industrial Motion Planner and follow the tutorial at https://ros-planning.github.io/moveit_tutorials/doc/pilz_industrial_motion_planner/pilz_industrial_motion_planner.html. ...
carl.os's user avatar
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0 answers
28 views

Error: Session is already connected

I am trying to connect the pepper robot with ROS. and I have installed all the required drivers for it. When I enter the command from the terminal to connect the pepper robot, it's showing as the ...
sai's user avatar
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0 votes
0 answers
20 views

Video from dron camera to RTSP

I am a newcomer to using ROS and am facing the challenge of obtaining a video stream from the camera topic of my robot in Gazebo and transmitting this video via RTSP. I have attempted to use the gi ...
Jazx Jazx's user avatar
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0 answers
17 views

Ros PX4 Gazebo - some ready-made models do not start and give an error

I created the new model according to the instructions. Error on startup. I also get the same error if I run some of the list of available models. For example:models iris, plane, plane_catapult, boat - ...
Andrey Kulachenko's user avatar
1 vote
1 answer
23 views

Octomap and Projected Octomap not lining up

I am trying to use a projected Octomap as an occupancy grid to pass onto the ROS navigation stack, but when I create one using the octomap_server package, it creates an occupancy grid which is rotated ...
Joshua L's user avatar
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0 answers
9 views

planner_frequency not working once robot stands still

I have written my own global_planner_plugin for ROS which tries to map an initially unknown area. The "goal" variable sent to the makePlan method is therefore unused. As to not have too long ...
user38454's user avatar
1 vote
1 answer
53 views

Is it possible to use the Zenoh Rust Api on embedded rust?

Since Zenoh will be a tier-1 RMW for ROS, I was thinking, "why not use Zenoh's rust API for microcontrollers ? " As embedded rust is a thing and is widely used. I am aware of Zenoh Pico (C ...
Bezal-el's user avatar
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0 answers
24 views

Question about timeout_ns parameter in rclc_executor_spin_some

I have a question about the timeout_ns parameter of the rclc_executor_spin_some function. As far as I know, the timeout_ns parameter of rclc_executor_spin_some is interpreted in two ways. Can you tell ...
YouJungChoi's user avatar
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2 answers
30 views

Extract color from Octomap

is there any way to get the color of each voxel in an Octomap as it is being built in real-time? The package I am looking at, https://github.com/floatlazer/semantic_slam, is a semantic SLAM package ...
Joshua L's user avatar
0 votes
1 answer
48 views

Making a ROS GUI QT6 and C++ in Ubuntu 20.04

I'm trying to make a ROS GUI with QTCreator 6. For some reason I'm always getting some include problems either with QT-Libraries, own header files or ROS. I'm using the ros_qtc_plugin. Project ...
Bryan's user avatar
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0 votes
2 answers
31 views

multi install spaces

I want to have both a release and pre-release version of my ros pack installed on a robot, so I can easily change between them. my idea was to install the pre-release to a separate workspace in /opt/...
Lucas Rønne Jeppesen's user avatar
1 vote
1 answer
76 views

KeyError:'unique_identifier_msgs' and KeyError:'service_msgs' when compiling interface package

I am pretty new to ROS, so please do not expect much from me. I am building a robotic system for my project, and as of right now I am setting up interfaces to use in the project. I added a message ...
highjeans 's user avatar
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0 answers
47 views

Using a Picamera with ROS Noetic on a Raspberry Pi

The goal is simply to get my raspberry Pi 4 running Ubuntu 20.04 (64 bit) and ROS1/Noetic to use a raspberry Pi Camera. Now there are many pages devoted to this questions and I have tried them all. I ...
pitosalas's user avatar
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0 answers
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Moveit! - How do you set goal to one or two axis (not all) so that certain IKFast types can find a solution?

I have a little bit confusion regarding the orientation goal with respect to the IKTypes in IKFast. For example there is a solver for 4DOF arm: TranslationXAxisAngle4D, TranslationYAxisAngle4D, ...
Ezeuz's user avatar
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0 votes
1 answer
69 views

I'm getting an error when trying to install ROS

I get the same error every time I follow the steps to install Ros. Even though I tried different codes and gpt's solutions, none of them worked. I even deleted Ubuntu and reinstalled it. I would be ...
KemalCanGngr's user avatar