rostopic echo doesn't output data
Hello,
I am trying to access the the /vislam/pose data using: https://github.com/ATLFlight/ros-exam...
I am running ROS on the snapdragon flight.
ifconfig yields an IP of: inet addr:192.168.0.111
i have set ROS_IP, ROS_MASTER_URI, and ROS_HOSTNAME in the /home/linaro/.bashrc file as so:
export ROS_HOSTNAME=$(hostname -I | awk '{print $1}')
export ROS_IP=$(hostname -I | awk '{print $1}') # Set ROS_IP
export ROS_MASTER_URI=http://192.168.0.111:11311
and env | grep ROS yields:
ROS_ROOT=/opt/ros/indigo/share/ros
ROS_PACKAGE_PATH=/home/linaro/ros_ws/src:/opt/ros/indigo/share:/opt/ros/indigo/stacks
ROS_MASTER_URI=http://192.168.0.111:11311
ROS_HOSTNAME=192.168.0.111
ROSLISP_PACKAGE_DIRECTORIES=/home/linaro/ros_ws/devel/share/common-lisp
ROS_DISTRO=indigo
ROS_IP=192.168.0.111
ROS_ETC_DIR=/opt/ros/indigo/etc/ros
I have added this IP in the etc/hosts file as so:
192.168.0.111 test1
The IMU is properly outputting data according to the sensor tester (see github documentation) and rostopic list yields:
/rosout
/rosout_agg
/vislam/odometry
/vislam/pose
However rostopic echo /vislam/pose yields a blinking cursor on a blank line. If there is anything I have done incorrectly or more information needed, please let me know. Any help would be sincerely appreciated.
This could be that rostopic isn't printing anything when it should, or it could be that the vislam node isn't publishing any messages. You might want to try running the tutorials and echoing the chatter topic to determine if this is your network setup or the vislam node.