alee's profile - activity

It's hard to tell what's wrong without more information and the rosserial package doesnt have the best error statements...last thing I can think of is permissions to the port you're using

Try using the instructions on the Github readme for the ROS driver

What distro of ROS are you on? If you ran make_libraries with the wrong version of ROS, it might cause issues.

nh.getHardware()->setBaud(//some baud rate);

Make sure this value matches what you set for serial node.

Both can control baud. There's a baud rate on the arduino side and a baud rate on rosserial's side. Both need to match to communicate

Are you sure you have the correct permissions to your Arduino? Also, are you running at the same baud rate on the Arduino? There's likely a mismatch in baud rates between the serial node and the Arduino

Hey, try running the librealsense binaries first. If it's still black for IR views, make sure you run the patch for uvcvideo. Check out https://github.com/intel-ros/realsens...

Could the "remap" tag be what you're looking for? http://wiki.ros.org/roslaunch/XML/remap

+1 to this answer. Metapackages are no longer built but the child packages are so you can install the dependencies yourself or get someone to bundle them.

I'm trying to install the turtlebot packages using apt-get and the installation process hangs on the following step. I've included the output from sudo apt-get install -f.

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  ros-indigo-ompl
The following NEW packages will be installed:
  ros-indigo-ompl
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
190 not fully installed or removed.
Need to get 0 B/1,108 kB of archives.
After this operation, 6,621 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 301406 files and directories currently installed.)
Preparing to unpack .../ros-indigo-ompl_1.0.0003094-0trusty-20160109-141011-0800_amd64.deb ...
Unpacking ros-indigo-ompl (1.0.0003094-0trusty-20160109-141011-0800) ...
dpkg: error processing archive /var/cache/apt/archives/ros-indigo-ompl_1.0.0003094-0trusty-20160109-141011-0800_amd64.deb (--unpack):
 trying to overwrite '/opt/ros/indigo/include/ompl/extensions/morse/MorseSimpleSetup.h', which is also in package ros-indigo-ompl-informed 0.0.4-0trusty-20151123-234802+0000
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/ros-indigo-ompl_1.0.0003094-0trusty-20160109-141011-0800_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Thanks a lot!

EDIT: I've also already run sudo apt-get update

The CMakeLists.txt and package.xml for the package that you're trying to put image_converter in

Can you give us the CMakeLists.txt, package.xml, and any relevant output from terminal?

Try sudo apt-get update and then sudo apt-get install ros-indigo-rosserial. I can find the package currently. The other problem might be that you dont have the ROS package server in your sources list.

Have you installed rosserial_arduino like the tutorial tells you to?

What exactly are you trying to do? Are you trying to run rostopic list on your own computer after SSHing? Or are you trying to SSH then run rostopic list on the computer you SSHed into?

I don't think so. However, you can launch nodes on a remote computer so you can launch a file locally that launches remote nodes. An example would be here: https://github.com/PR2/pr2_robot/blob...

Hm. That doesn't seem right. It should look like ["username"-0, uri http://"ip":11311/]. Are you sure you put everything in the right order?

Do as the error message says. After you ssh in the first time, it'll get added to your .ssh/known_hosts file. You can also manually add it yourself.

Address should just be your IP address, no need for the username.

Can you post your files like manifest.xml? And you should probably look into using catkin, it's the recommended build system for Indigo

Can you make a new answer and accept it as correct?

What Arduino are you using? Depending on your Arduino, it might only have one serial port and as @martin-peris said, Serial might interfere with rosserial if you only have one line. On a Mega with 4 lines it might work, but definitely not on an Uno with only one line.

The problem with rosserial is that it gives that generic error message for almost anything. First thing I would check is whether your device is actually connected to /dev/ttyUSB0. Run "ls /dev/ | grep tty" before and after you plug in your xbee to the computer then check what port it's connected to based on what appears afterwards.

cv_bridge works with opencv2 ( http://wiki.ros.org/cv_bridge/Tutoria... )

I'm pretty sure roslaunch can't handle this because it's simply XML tags (please correct me if I'm wrong) but you should definitely look into setting udev rules for your laser scanner. This means that whenever it's plugged in, the computer will automatically give it proper permissions.

If I understand the problem correctly, perhaps the machine tag is what you're looking for? ( http://wiki.ros.org/roslaunch/XML/mac... )

Or you could just put them in the ~/.bashrc file and it would happen on startup.

According to this post: http://answers.ros.org/question/22796...

robot_script is deprecated. You should follow the steps that @ahendrix outlined

rostopic has an API as documented on the wiki page ( http://wiki.ros.org/rostopic ). However, it does give a warning that "This library is for internal-use only as the code API may change, though it does provide examples of how to implement dynamic subscription and publication behaviors in ROS." so your mileage may vary.

You need to write a script using the api and run the script after launching the simulation

What version are you using currently? And when you mean command interface, what do you mean? Do you just want to drive it around? If so, the pr2_teleop_general or pr2_teleop package is what you want.

Did you type in "<distro>" specifically? You need to replace "<distro>" with something like "hydro" or "indigo" or "jade"

When does it say unversioned?

Check in /opt and see if there is a directory called "ros". Alternatively, try "source /opt/ros/<distro>/setup.bash" where DISTRO is the distribution you think you've installed (indigo, jade, etc.). If neither works, you don't have ROS

I meant to run the teleop node then check /cmd_vel. Also run rostopic info /cmd_vel and you can see if anything is subscribing to it. If there's a publisher but no subscriber, the disconnect is why there is no movement

Hm. Does that appear when you run the node too?

rostopic echo /cmd_vel

I would also check rostopic list and see if there's a topic called "/base_controller/command". If the topic name has changed, let me know and I'll go fix the code. This might not be a problem on your end.