All Questions
9 questions
0
votes
1
answer
27
views
Subscriber in /odom topic from gazebo loses first message
Hello!
I have a robot in a gazebo environment that publishes the odometry data on the topic /odom. I have a node that subscribes to that topic and uses the odometry data. I save the data from the ...
Spyros
0
votes
1
answer
12
views
Smach get value from subscriber topic
I'm pretty new to ROS, and I'm working with SMACH. I have an Arduino UNO with 4 LEDs (green ,yellow, red and blue) and one button.
What I'm trying to achieve is a sort of traffic light simulator. My ...
rubbun
0
votes
1
answer
8
views
rospy message_converter outputs zero while in the terminal I got different output for the same topic
ROS Kinetic
Ubuntu 16.04
Python 3.5
I am using diff_drive_controller to publish rwheel_angular_vel_motor and lwheel_angular_vel_motor topics. My goal is to take messages published by those topics and ...
wallybeam
0
votes
1
answer
26
views
Infinite loop in callback function
Hi there!
I want to subscribe to a topic (real_position) and save these data in a variable (julio) in order to process them later in my code. I've tried to use something similar to the tutorial for ...
Spyros
0
votes
1
answer
160
views
Error: bad interpreter: No such file or directory
I am trying to run the following node using rosrun, to send data through my serial port and I get the error:
...
Spyros
0
votes
1
answer
178
views
rospy.exceptions.ROSInitException - time is not initialized
Hello,
I was just testing my websocket, for which I was using the basic ros publisher subscriber tutorial. These worked until last week, and I haven't touched this package until today.
error thrown ...
arunavanag
0
votes
1
answer
4
views
rospy publisher behaving different from rostopic pub
Hi,
I am trying to control my kinova mico manipulator arm through ROS python. I observed that when I use:
...
ck28
0
votes
1
answer
17
views
Trouble installing nmea_navsat_driver package?
Hello, I'm currently trying to set up a GPS receiver and base station my boss purchased to work in ROS. It is a trimble Ag GPS 542 GNSS receiver ( http://ssmgps.com/pdf/AGPB_AgGPS542_B... ). It looks ...
mysteriousmonkey29
0
votes
1
answer
73
views
ROS installation and usage of nmea_navsat_driver for GPS receiver?
Hello, I'm currently trying to set up a GPS receiver and base station my boss purchased to work in ROS. It is a trimble Ag GPS 542 GNSS receiver (http://ssmgps.com/pdf/...
mysteriousmonkey29