Newest Questions
47,151 questions
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What is the power required in each joint of a walking robot based on the human power?
I'm trying to figure out how much power each joint of the lower half of a humanoid robot would need in order to operate similarly to a human being, but I'm finding different informations based on each ...
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ArduPilot SITL + MAVROS + ROS2: Drone arms and flies from MAVProxy, but won’t take off when controlled from ROS2
I’m running ArduPilot SITL + Gazebo (Armonic) + MAVROS + ROS2 Humble, using the official ArduPilot Gazebo plugin.
I’m facing a strange issue:
When I use MAVProxy manually:
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Action server with mutually exclusive group does not work as expected [ROS2 - Python]
Context
Hello, I recently wanted to implement a ros2 node (in rclpy) that manages multiple action servers. I wanted to make sure that only one action goal can be ...
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Empty planning group (ros2 humble, moveit)
Hi I have tried using the move it setup assistant (ros2 humble) to create a config package for my custom robot arm but I run into this error whenever I set poses in it:
Warning: Group 'arm_group' is ...
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How to Turn Off All Collisions in Gazebo Harmonic for Performance Optimization?
I am currently using Gazebo Harmonic and would like to disable collision detection for the entire world to improve simulation performance. Is there a convenient way to achieve this globally?
If not, ...
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rviz and gazebo not in sync (rviz faster)
My RVIZ is not simulating the output of Gazebo, hence it moves faster (no physics,) while Gazebo moves slower according to friction. This causes inaccuracies when I use slam_toolbox as it doesn't ...
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Hardware Implementation of a Torque controller on Hiwonder Jetrover arm
I have designed a custom torque controller for a robotic arm. I want to test it practically on the Hiwonder Jetrover arm. I am not sure where I should start from as I don't have much practical ...
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Arduino uno 5 DOF robot arm (Hiwonder miniarm)
My program is compiling. I am using inverse kinematics to move the robot. However, the robot keeps stalling and the motors are stuttering. I was able to move the end effector once, but only one joint ...
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robot odom went wrong/unsynchronized at rviz2
i'm currently using an 4 wheeled robot (differential) for trying robot_localization on real robot + rviz2, when i tried to move my robot it wet like the video that i provied
rviz2 test video (youtube)
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How can I get Message Info when subscribing in Python?
I want to subscribe to a topic in Python but the messages don't have headers with timestamps. My understanding is I can get a published timestamp from the message info but I can't figure out how to ...
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How to shutdown with a non-zero exit code from a python launch file?
I would like to be able to cleanly shutdown a ros2 launch from within the python launch file while returning a non-zero exit code. I want to do this based on the ...
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ROS 2 CycloneDDS + OAI 5G + Linux Network Namespaces — No Subscriber Receives Messages
I am working on a ROS 2 (Jazzy) + Cyclone DDS setup where ROS traffic is transported through OAI 5G Core + gNB + UE network namespaces.
System Setup
Host runs a ROS 2 publisher with CycloneDDS using:
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How Can I get Information from Rviz Select
As the pic show, How Can I get PointCloud information, such as selected pointcloud or selection area, etc...
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Motion Planning and Cost Function Support in Various Robot Simulation Tools
I’m making a comparison table of different robot simulation tools (e.g., RoboDK, Gazebo, CoppeliaSim, PyBullet, MuJoCo, Unity, Webots, ABB RobotStudio, KUKA.sim, FANUC ROBOGUIDE, Yaskawa MotoSim) for ...
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Can I safely use pip install in Ubuntu 24.04 without virtual environments because ROS2 nodes don’t run inside venv?
I’m working on a ROS2 project on Ubuntu 24.04 (Python 3.12). ROS2 uses the system Python under /opt/ros/... and doesn’t work correctly inside virtual environments. I want to use Python libraries like ...
