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2022-01-04 08:09:12 -0500 | commented answer | List of standardized topics for navigation using custom robot Thanks, that clears up at least the cmd_vel. I will start by making the robot move. By the time I fully understand that, |
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2022-01-04 01:35:31 -0500 | commented answer | List of standardized topics for navigation using custom robot So to answer my own comment. After some more Google-ing, it looks like my best bet is to set up a simulation with a comm |
2022-01-04 01:33:24 -0500 | commented answer | List of standardized topics for navigation using custom robot Thanks for the reply, I will try to figure it out that way. Still it's a bit unclear. The twist message has two vectors, |
2022-01-04 01:33:11 -0500 | commented answer | List of standardized topics for navigation using custom robot Thanks for the reply, I will try to figure it out that way. Still it's a bit unclear. The twist message has two vectors, |
2022-01-03 03:22:48 -0500 | asked a question | List of standardized topics for navigation using custom robot List of standardized topics for navigation using custom robot I'm building a custom robot that I eventually want to inte |
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2020-06-10 01:04:10 -0500 | marked best answer | $PYTHONPATH is not in sync with Python sys.path I have build ROS Melodic on a Raspberry Pi using the supplied instructions. This seems to work fine and I'm able to build my own workspace. However, after sourcing setup.bash, the $PYTHONPATH variable is not in line with what Python reports as its path. Thus certain libraries can not be found when executing ROS programs (eg std_msgs needs PyYAML, which is installed, but not available when running the project through roslaunch) Is this a misconfiguration on my end? What can I verify and change to make this work? The error when using roslaunch: pyyaml is installed, but not in any of the folders in $PYTHONPATH: |
2020-06-09 15:16:30 -0500 | answered a question | $PYTHONPATH is not in sync with Python sys.path In the mean time, I figured it out. The $PYTHONPATH was a red herring and not related to the problem. The code was inde |
2020-06-07 07:39:27 -0500 | asked a question | $PYTHONPATH is not in sync with Python sys.path $PYTHONPATH is not in sync with Python sys.path I have build ROS Melodic on a Raspberry Pi using the supplied instructio |
2020-04-05 10:56:51 -0500 | commented answer | teleop_twist_keyboard in launch file has no output Awesome, that's exactly what I was looking for. |
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2020-04-05 10:56:30 -0500 | marked best answer | teleop_twist_keyboard in launch file has no output I'm trying to start the teleop_twist_keyboard node from within a launch file. I'm following the explanation at the bottom of this page: https://wiki.ros.org/stdr_simulator/T... And this is my launch file: It looks like this is launched correctly, however, I can't see the output of the teleop node and I'm not able to control the turtle. Is there anything specific I should do to use the component? I'm guessing that roslaunch is not 'forwarding' my keyboard input to the right node, but I have no idea how to solve this. update: I'm pretty new to ROS, so after investigating the topics and graph, it turns out I wasn't properly remapping the topic. This version of the teleop_twist_keyboard works, but I still don't have any output by the teleop_twist_keyboard node So, still my question is, how can I have the teleop node output its text in the launch window. |
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2020-04-05 05:57:00 -0500 | asked a question | teleop_twist_keyboard in launch file has no output teleop_twist_keyboard in launch file has no output I'm trying to start the teleop_twist_keyboard node from within a laun |