ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
2016-11-30 00:47:33 -0500 | commented answer | rostopic list return topics, but not able to echo topic At first, I would suggest checking your network infrastructure - if you have any firewall blocking some ports. At the university where I'm working there was this issue, that just some ports are open. Best is to have your local router and be able to control it. Also, check your environment variables. |
2016-05-03 07:55:06 -0500 | received badge | ● Taxonomist |
2016-01-25 08:28:16 -0500 | received badge | ● Famous Question (source) |
2015-11-19 07:10:48 -0500 | received badge | ● Famous Question (source) |
2015-11-19 07:10:48 -0500 | received badge | ● Notable Question (source) |
2015-10-06 23:51:32 -0500 | received badge | ● Notable Question (source) |
2015-09-09 02:13:07 -0500 | received badge | ● Enthusiast |
2015-09-04 02:09:33 -0500 | received badge | ● Popular Question (source) |
2015-09-02 06:07:46 -0500 | commented question | ROS indigo + Arduino Due I did test with Arduino Mega and it is working fine. So it might be a problem with ARM processor at Due. |
2015-09-02 04:12:55 -0500 | asked a question | ROS indigo + Arduino Due Hello, My system consist of: ROS indigo and Arduino Due. I'm trying to run example with Servo control. I succeed with compiling and uploading code to Arduino, but I have a problem with sending angle to Servo motor. When I'm starting rosserial_python node, I'm getting following error: Hardware link is done correctly, tty port and baud rate is set correctly as well. Any hints very welcome :) |
2015-08-27 02:21:33 -0500 | received badge | ● Supporter (source) |
2015-08-27 02:21:20 -0500 | commented answer | rostopic list return topics, but not able to echo topic Thank you so much. Now it is working just great. |
2015-08-27 02:20:51 -0500 | received badge | ● Scholar (source) |
2015-08-26 15:25:28 -0500 | received badge | ● Popular Question (source) |
2015-08-26 10:12:17 -0500 | asked a question | rostopic list return topics, but not able to echo topic Hello, My configuration looks like: Beaglebone black with GPS + laptop. Both running Ubuntu 14.04 and ROS indigo. I would like to run roscore at laptop and node gpsd_client at beaglebone. I set following variables: At laptop (ip 192.168.7.1): At beaglebone (ip 192.168.7.2): I'm able to ping each other. I'm able to do rostopic list from both. But I'm not able to do rostopic echo fix. roswtf give following error msg: I see error but unfortunately I don't now how should I fix it. I tried another configuration, when roscore was running at beaglebone with gpsd_client, and do echo from laptop - this is working without any problem. Just problem apear when I run roscore at one machine and node in another. I hope that my problem is trivial to fix and I'm just missing some setting. |