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Normal calculation and comparation of points, how to perform this?

I have a problem do you know how to estimate a normal for a single point using the function: computePointNormal (const pcl::PointCloud &cloud, const std::vector &indices, Eigen::Vector4f &...
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Controling my robot by ROS via Arduino

Hi, I wrote a program to control my quadrocopter with external microcontroller but i want to move control program from uC into ROS. Base microcontroller of mine robot is ARM but i want to send data ...
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Mini mobile robot with mini PC

I want to make a mini mobile robot with a mini PC which can run ubuntu. Is there any opensource hardware product? Originally posted by somebodyus on ROS Answers with karma: 113 on 2015-12-30 Post ...
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How do I publish gazebo position of a robot model on odometry topic

Hello, I have a robot model that runs using teleop key, and I want to publish its position and velocity on odometry topic. How should I achieve this? Thanks. Originally posted by cybodroid on ROS ...
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camera for micro robots

Hi Ros community, My group are planning to build a micro size robots with max weight of 500g. We want to buy a camera or cameras that can be use to find object and latter on to have it operate ...
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Couldn't find executable named tf_brodcaster below

Hi all, I am new to ROS My question is similar to a previous question asked. I am following the tutorial http://wiki.ros.org/navigation/Tutorials/RobotSetup/TF And I am stuck with the robot_setup_tf ...
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how to make a robot follow a line in ros?

I have to make a robot follow the path in the simulator using ros and I really don't know how to start, please help me in this project It will be a better if you could give me instruction step by step ...
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Problem with the robot model collapsing

I'm a beginner in the robotics/ROS/Gazebo world. I started to work in a robotics research lab in my university, and I have to model an Hexapod. Apparently, the URDF Xacro is alright: the visuals, ...
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Fetch & Freight robot: sudo service robot stop

Hi Everyone. I am newbie to ROS and my lab just have a fetch-freight robot. I was playing around with it, but get the error with rviz, so I tried to uninstall/reinstall ROS. But now, I can not use the ...
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Problem with python parser URDF

Hi everyone, I'm having some troubles extracting the information of a URDF file from the parameter server. In the launch file I load the robot in the parameter server with no problem or warning, in ...
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Existe algun paquete de ROS para progamar con bloques del estilo a Simulink?

Estoy haciendo un proyecto para controlar un robot y para mandarle las instruciones al robot utilizo un nodo a modo de cliente en el que escribo las instruciones para mandarlas a otro nodo servidor a ...
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Synchronous communication with gazebo

Hi, I am trying to implement a robot controller using ros + gazebo - So, what I want it to tell gazebo a particular command and then gazebo should return the state after 1 second. And after that it ...
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Stack/package robot_setup_tf not found

Hi all. I'm new to ROS. I'm tasked to Hokuyo UST-20LX's laser scan to scan area. I'm stuck with the robot_setup_tf part. I have already set up my workspace environment with: ...
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How to build a package from source?

Hi! I've recently installed the ROS indigo desktop version in my raspberry PI 2, running the last version of Raspbian (following the tutorial http://wiki.ros.org/ROSberryPi/Installing%20ROS%20Indigo%...
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Working with ROS and Robot Arms

Hello! I am working for my Bachelor Degree with ROS and I have to setup and implement a Robot System. The final goal is to grab a mug while the robot is driving next to it. Now my question is, since ...
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How to use source code from Arduino in ROS?

Hi everyone, I am new with ROS and at the moment I am trying to use my sorce from the Arduino robot in ROS. It is an Arduino robot 4WD that consits these modules : mega2560,Ethernet, motor driver, ...
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Trajectory following with mobile, holonomic robot

Hi guys I wanted to ask if there is really no package / stack available that implements position control for velocity-controlled holonomic mobile robots? And that also features a ...
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ROS Answers SE migration: arduino robot

Hello there !I would like to make a robot with arduino but using ros .Do you know any book or tutorials that i am able to read?Because i found some examples but i dont really get some parts! Also ...
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how to work with robotic manipulator?

I have to work with one Kawasaki Robot arm. I am confused is there any developed package for the manipulator controller in ROS? These robotic arm come with one dedicated controller. in order to work ...
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moving a robot inside specific area

I have a pioneer robot and I want to move it in the lab and I want to keep it in a square area. So when ever it want to cross that area it cant. I dont want to send a zero velocity to it so it will ...
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Qt GUI platform for mobile robot

Hi, I am now currently developing a mobile robot and I wish to create a GUI by using Qt to control my mobile robot. I would like to ask is there any sample/example of Qt based GUI that is already ...
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robot (PR2) physical information

Hello I've been working with lasers for laser avoidance, and because of the Eigen/Core bug, I skipped using a Laser projector and did the computation of tilt scan into base scan by hand. Rotation is ...
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Port Questions and (Initial) Feedback from Controller via Simple Message - ROS-I

Hello ROS-Community! I would still like to use my computer (Matlab, Simulink, C++) like a "controller" and therefor write a little driver. It is not yet necessary to run it on the real B&...
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Generating ikfast plugin for 5 DOF robot

Hi everyone, we are currently working on an ERICC 1 robot (probably >30 years old) and need to update its control systems, etc. Considering that it is a 5 DOF robot, we are having a lot of ...
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Stopping/Moving a Robot During Navigation

Hello, I'm using ROS Navigation Stack on my robot. How can I get the robot to stop during navigation for example because of safety issues and after the safety issue was resolved the robot moves again ...
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How to install rosbridge on NAO robot

Hi, I am thinking about a possibility to install rosbridge on NAO robot. I've got an idea but im not sure if its correct idea. I am downloading (rosbridge) source files and put it into a VM where i've ...
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Using ROS java on android for robot control

I'm brand new to ROS so bear with me: I was hoping for some advise as to how to approach a project I am attempting. I have logic control written in Java (as an Android application) that I want to ...
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robot is not algined to the laser scanner frame

I have my own URDF file, when I try to do mapping using the slam_gmapping node, then open the rviz with the map and robot model, then I can see that what the actual laser scanner is seeing is exactly ...
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Robot in Rviz flashes

I am using my URDF file (for my custom robot) for simulation in rviz, then publishing state (based on the odo data coming from real robot) robot moves in RVIZ in accordance with real robot, but the ...
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Does anyone know how do the link between Rviz of ROS and the physical robot model?

hi all, I would like to do the link between rviz and my phisical robot, when my robotic arm move, i would like the same think into rviz ? thank you for your help! Originally posted by a_le_ban on ROS ...
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Is kobuki a holonomic robot?

Hi, all, I am writing a local planner for turtelbot2, i.e. kobuki robot. But I am not sure is it a holonomic robot. From the wikipedia I think kobuki is a holonomic robot, isn't it. Thank you! ...
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Problems creating own robot in Gazebo with catkin_ws

Hey, I am still learning ROS and Gazebo. Right now I am using ROS-INDIGO and Gazebo 2.2. so I went through some tutorials at gazebosim.org especially at this one Using roslaunch and tried to follow ...
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face animation display

I do not want to reinvent the wheel on this one. What I have in mind is a program developed that shows a simplified face maybe a little better that eyes,nose, mouth (maybe a smiley face at first) in ...
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odometry and gyro replacement for my new robot using smart-phone or tablet?

Hi there, I'd like to know if it's possible to get odometry and gyro data from a tablet or smart-phone and publish them in corresponding topics via Wifi for example ?? is it possible ? if yes, is it ...
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KDL for a 21 dof robot

Hi, I work with the kdl, but i dont know how to determine the angle Limits. Someone an idea? Thanks Originally posted by Dante on ROS Answers with karma: 21 on 2014-06-16 Post score: 0
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ros navigation navfn make plan after re-set the initialpose of AMCL

Hi all, I have an observation when I re-set the initialpose of amcl by publishing to the initialpose topic and then sent goal to the navigation stack. The plan made by the navfn was still starting ...
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How can I use nao_camera from nao_driver

Hi all, When I run nao_driver, either in a simulator or on a nao robot (from my remote PC), I get this error: Traceback (most recent call last): File "/home/jonfeme/nao_ws/src/nao_robot/...
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Gazebo crashes when spawning a robot with urdf

Hello, I'm looking forward to use ROS Indigo with the fresh released Ubuntu 14.04. Gazebo is starting fine but instantly crashes when spawning a robot via service call: ...
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Where can I change the size and form of the Robot at the SBPL Lattice Planner

Where can I change the size and form of the Robot at the SBPL Lattice Planner? I would like that the Robot looks more like a car, and not so circle-formed. Originally posted by Ico on ROS Answers ...
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Rostopic weird behaviour an Raspberry

Hellow, I installed the robot variant on my raspberry Pi. For this I had to get rid of two packages : ros_lisp and collada_urdf. Anyway... My pi is having a very weird behaviour when publishing on ...
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Manipulator Shakes/Wobbles

I am using a Universal Robots UR5 mounted to a cylindrical post using fixed joints (one to world, the other to the UR5). When I drive it in Gazebo using Moveit! the model shakes/wobbles. It eventually ...
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retrieve tf transform

Hellow, I'm trying to obtain information from the a tf transform. I've loaded my URDF file in the parameter server and run robot and joint state publish. Here is a picture of some links : So I can ...
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ROS Answers SE migration: robot pose ekf

Hi all, i'm trying to make this node run just with my IMU Microstrain 3DM-GX3-25. For this I use the node provided here. If I run them as they are the IMU is outputting the data correctly, while the ...
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ROS have a Scara robot packages?

hello. In my lab there is a scara robot i would like to work with it using ros. I like to known if exist a packages in ros using a scara or something similar. thanks Originally posted by coughsyrup ...
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move_base in Hydro

I'm trying to use the navigation stack with my Robot simulated on Rviz with the arbotix simulator. I had configuration files that were working perfectly fine in Groovy but I'm trying to switch on ...
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stage.rviz missing and URDF

Hello all, I followed the tutorial on stage for simulating one robot but in the stage stack there is not such file as a stage.rviz. Only a stage.vcg which according to the error prompted is the old ...
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2 answers
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Custom robot and ROS

Hello, My question is kind of really general in some sense but I don't think it's an endless question. I'm currently trying to build a custom robot similar to a turtle bot and I'm thinking about ...
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I don't have a robot, can i use ROS with my desktop until i get one?

I don't yet have an expensive robot or the time to build one, but I do like the idea of having access via an API, both in allowing a robot access to my API data, but additionally this could provide ...
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Navigation using footstep planner and real NAO

Hello, ...
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Simulated robots in Gazebo/Hydro

Hello, in Hydro, are there some working robot simulations? I mean Gazebo models etc. I know only about Turtlebot but I would rather do some experiments with an omnidirectional platform. Unfortunately, ...
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