/clock topic not recived on master

asked 2018-02-07 01:12:08 -0500

chris_sunny

47 ●8 ●9 ●14 http://zrncs.github.io/

updated 2018-02-07 01:13:09 -0500

I am building a G-mapping based SLAM robot .

Master - This is my desktop .

roscore is running here
192.168.1.6 is the IP address

Robot - The robot is hooked to a RPI3 .

I have added this to the .bashrc file , "export ROS_MASTER_URI=http://192.168.1.6:11311"
IP address of the RPI is "192.168.86.165"

I am publishing /clock (which is required for the node publishing /odom) from the RPI on the Robot .

I am not able to receive the /clock on the Master .

Essentially the client is not able to communicate back with the master , how do i fix it .

answered 2018-02-07 02:15:02 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

updated 2018-02-07 02:49:49 -0500

Have you set ROS_IP on both hosts?

Edit:

Should i set the ROS_IP on both Master and Client ?

Unless you have a working DNS setup for both: yes.

Note: if you have DHCP configured, adding the (current) IP addresses to /etc/hosts is not sufficient, as the IPs may change in the future / on reboot. If you have DHCP, make sure to have proper DNS as well (ie: updated by your DHCP server).

And just making sure: have you checked the ROS/NetworkSetup guide?

Edit2:

On the robot instead of export ROS_IP=192.168.86.165, it was export ROS_IP=localhost

I would be very much surprised if that works. It could work now, but I guarantee you that you'll get in trouble later.

edit flag offensive delete link

Comments

Should i set the ROS_IP on both Master and Client ?

chris_sunny ( 2018-02-07 02:27:45 -0500 )edit

Thanks , problem solved . On the robot instead of export ROS_IP=192.168.86.165 , it was export ROS_IP=localhost

chris_sunny ( 2018-02-07 02:45:04 -0500 )edit

add a comment

/clock topic not recived on master

1 Answer

Comments

Question Tools

Stats

Related questions

/clock topic not recived on master edit

1 Answer

Comments

Question Tools

Stats

Related questions

/clock topic not recived on master