Arif Rahman's profile - activity

Here's a sample script to do it, following @zkytony 's answer: #!/usr/bin/env python3 import rospy from geometry_msgs.m

Hi, I'm having the same problem. Did you manage to figure this out?

Scale Issue on Map vs Laser Hi, I'm working on amcl localization for my robot, and ran into this weird scaling problem

Sorry no update, we decided that this is too much work and just go without ROS at the moment.

@gvdhoorn please see edit.

Create ROS-I interface for a non-supported robot Hello, I have an Estun industrial robotic arm (from China) http://en.

Create ROS-I interface for a non-supported robot Hello, I have an Estun industrial robotic arm (from China) http://en.

You can start with this https://www.youtube.com/watch?v=KjxHQLQ0tiE

Most likely because you are spawning 2 models that have the same name ("my_model"). Each model needs a different name.

Its ok if you dont like my answer. I prefer to explain over a video. You dont have to watch it. Thanks for the advice an

Sure. Here's my explanation again https://youtu.be/2Qs6A3Zsbfk

Hi @abdelkrim, This is very much possible. You will need to subscribe the /odom topic, process the data so that you ge

Sure, done.

Hi @abdelkrim, This is very much possible. You will need to subscribe the /odom topic, process the data so that you ge

Hi @abdelkrim, This is very much possible. You will need to subscribe the /odom topic, process the data so that you ge

1 thing to check: make sure the keyboard teleop is OFF when sending the goal. Kill the node. Otherwise their commands wi

Try looking at this https://github.com/tum-vision/tum_ardrone/issues/94

As per the tutorial in http://wiki.ros.org/husky_gazebo/Tutorials/Simulating%20Husky , Step 2: $ export HUSKY_GAZEBO_DE

As an engineer and hobbyist, I've built drones and ROS-based robots, but not (yet) a ROS-based quad. From my experience,

Hi locustcox, I just thought this might be a useful info for you: "... the 3DR uBlox LEA-6 GPS is setup to deliver position and status data in a binary format, not in the NMEA sentence structure ..." from https://sites.google.com/site/wayneholder/self-driving-car---part/evaluating-the-3dr-ublox-lea-6-gps :)

Dear ROS-masters,

I have just started playing with my turtlebot, and has managed to get it running up until the Teleoperation tutorials.

However, when I wanted to restart everything (after unplugging and turning off everything), I get this error saying that the Kobuki base could not be initialised.

[ERROR] [1394463093.626429971]: Kobuki : could not open connection [/dev/kobuki][/mobile_base].
[ERROR] [1394463093.626745145]: Kobuki : could not initialise! Please restart.

Can anyone please point me as to what is wrong here? It worked perfectly at first, but now I couldn't get it to work anymore :(

The only difference between when it was working and when it was not is that I updated my workstation's installation of ROS so that I could run RViz on it, and not on the turtlebot laptop.

Any ideas?

Dear ROS-masters,

I have just started playing with my turtlebot, and has managed to get it running up until the Teleoperation tutorials.

However, when I wanted to restart everything (after unplugging and turning off everything), I get this error saying that the Kobuki base could not be initialised.

[ERROR] [1394463093.626429971]: Kobuki : could not open connection [/dev/kobuki][/mobile_base].
[ERROR] [1394463093.626745145]: Kobuki : could not initialise! Please restart.

Can anyone please point me as to what is wrong here? It worked perfectly at first, but now I couldn't get it to work anymore :(

The only difference between when it was working and when it was not is that I updated my workstation's installation of ROS so that I could run RViz on it, and not on the turtlebot laptop.

Any ideas?

Hi all,

It seems that for a couple of times when I try to load ros.org (incl wiki, answers, etc), I get a 'not found' error. It was like the website is offline or something. Sorry I forgot the actual error.

Is it just me or is this common? The last time I had this was the whole day yesterday (around 9am - 5pm Malaysian time, GMT+8).

Arif