ros_zeromq_tutorial's Introduction

ROS ZeroMQ Tutorial

This tutorial shows how to use ZeroMQ with ROS for publishing and subscribing to messages. The following two languages are supported:

CPP
Python (see thanks section)

Dependencies

ZeroMQ: Install ZeroMQ using following command:
```
sudo apt-get install libzmq3-dev
```
It should be easy to install newer versions of ZeroMQ, and this repository should be compatible with them. However, please note that this repository is only for demonstration purposes. Therefore, we have not tested it thoroughly. In such cases, please feel free to open a new issue to inform the changes to authors.

Compilation

Make sure to download complete repository. Use git clone or download zip as per convenience.
Invoke catkin tool inside ros workspace i.e., catkin_make

Steps to run

Start ROS Core by using the following command:
```
roscore
```
Invoke the publisher by using the following command:
```
rosrun ros_zeromq_tutorial talker_zmq
```
Alternatively, the python version of talker can be started by using the following command:
```
rosrun ros_zeromq_tutorial talker_zmq.py
```
The published data can be seen by using the following command:
```
rosrun ros_zeromq_tutorial listener_zmq
```
Alternatively, the python version of listener can be started by using the following command:
```
rosrun ros_zeromq_tutorial listener_zmq.py
```

Issue

Please check here and create issues accordingly.

Thanks

The following authors are sincerely acknowledged for the improvements of this package:

Md Rakin Sarder: For providing python nodes

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ros_zeromq_tutorial's Issues

Problems with library libzmq3-dev

Hi,

I encountered the same problems when running CATKIN_MAKE: /usr/include/zmq.hpp:550:47: error: 'zmq_event_t' does not name a type. I tried reinstalling libzmq3-dev library by purging previous versions: sudo apt-get purge libzmq*. How do you get pass this error?

Thanks!

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