Newest Questions
47,102 questions
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Need service node to not send response before recieving a msg on a topic
i have the following issue;
Node is a service node, and a subscriber. When the service recieves a request, i want it to wait for a msg on the topic it subscribes to before the service returns the ...
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5
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Overriding node parameters after calling rclpy init
I want to be able to write tests to verify that a node initialises correctly with different parameters. The parameters are retrieved/defined in the node's init function as follows.
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How to delete shared memory files created by ros2 specifically?
I run ros2 applications in docker-container and communication based on shared-memory. The containers will stop or restart occasionlly, so i want to clean shared-memory created by specific container to ...
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Issue with Follow Path when following a straight path
I am providing the follow path controller sever in Nav2 with a set of global points to follow as below:
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17
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Pointcloud not aligned with with map
i am new to robotics and i want to build a robot that has a lidar sensor, depth camera and which detects traversable soft objects (using yolo) and extracts only the depth image of the detected objects ...
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trajectory preempt with FollowJointTrajectory controller is not smooth
I implemented a soft stop function (in two variants) to stop the motion of a manipulator in my repository (ManyMove)
It basically builds a single-point trajectory with time_from_start in the future, ...
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What types of embedded controllers (PLCs, FPGAs, ARM boards, etc.) are used with ROS 2 in real-world robotics applications?
I'm a robotics student trying to understand what kinds of embedded or industrial controllers are commonly used in real world or production level robotics applications with ROS 2.
I'm especially ...
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10
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Could not contact service /abc/controller_manager/list_controllers
I have problem with launching my robot in my declared namespace. I mean for example "abc". After adding namespace, there are warnings:
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How can I implement obstacle avoidance with an FHL LD20 LiDAR sensor on an ESP32-based robot (without ROS)? [closed]
I'm working on an electronics project where I'm building an autonomous mapping robot. The robot is based on an ESP32 microcontroller and uses a 4-wheel chassis with two dual motor drivers (L298N).For ...
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34
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Colcon doesn't build subfolders
I'm building a ros2 (jazzy) python package with the following structure:
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Compatibility of IMX500 AI Camera with ROS 2 Iron on Raspberry Pi 5 and Ubuntu 24.04.2
I'm currently working on a robotics project using ROS 2 Iron on a Raspberry Pi 5 running Ubuntu 24.04.2 (64-bit). One of my key components is the Sony IMX500-based AI camera (Aitrios), connected via ...
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ESP32 micro-ROS RPLIDAR N10 + MPU6050 publishes /scan & /imu/data_raw but SLAM Toolbox shows “No map received”
I’m building a handheld mapping setup with:
ESP32‑WROVER‑E running micro‑ROS
UART2 → RPLIDAR N10 → publishes /scan (sensor_msgs/LaserScan)
I²C → MPU6050 → publishes /imu/data_raw (sensor_msgs/Imu)
ROS ...
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I want to know the best motor to select for my robotic arm and why it is the best choice among other motors [closed]
I am designing a robotic arm with the aim of maximizing strength while minimizing weight.
What are the key factors that ? should consider in selecting a suitable motor, and why are the important ...
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NED to ENU Conversion Causing Depth Cloud and Pose Mismatch in ROS2
I'm working with a multi-UAV simulation using GZ Harmonic, ROS2(Humble) and PX4 SITL. Each UAV publishes its pose to /vehicle_pose and depth image data from a stereo camera. The depth points and pose ...
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Trying to use Gazebo depth camera with visibility mask
I have a Gazebo Harmonic simulation with a depth_camera sensor attached to my robot. I want to exclude certain visuals from the depth image. As far as I understand using the ...
