Have you ever ssh’d into a robot wanting to see if a topic is outputting what it should? Have you ever wished you could get something more meaningful that what you’d get by doing
rostopic echo /velodyne_points or
rostopic echo /camera/image_raw? Have you ever been annoyed about how much work it takes to fire up a visualization in rviz just to see if a sensor is working? Read on.
I created this more than a year ago but there were some suggestions to make it a ROS node as well as Python 2.x compatibility. Got too busy and never got around to it back then. Well, I think I’ve done that now. It is now a ROS package that you can install. I also added support for several more data types, including CompressedImage, PointCloud2, and time series plots of most std_msgs types.
Please keep the suggestions coming! Contributions welcome too!
For std_msgs types, you’ll get a time series plot, which is great for topics like motor current or voltage.