Node doesn't receive message, but rostopic list/info sees it [closed]

edit

I've modified the turtlesim tutorial to control some servos from a ps3 controller, and everything works fine when everything is running from my laptop. Now I want to move the part/file that actually do the moving of the servos over to a RPi.

I've added

export ROS_MASTER_URI=http://Yoda.local:11311

to the .bashrc on both nodes.

rostopic list/info/type displays the same info on both laptop and RPi, but when I try to get any actual data out, the RPi doesn't receive anything on rostopic echo/hz

I've tried running

rostopic pub -r 10 /robonova3/cmd_vel geometry_msgs/Twist '{linear: {x: 0.1, y: 0.0, z: 0.0}, angular: {x: 0.0,y: 0.0,z: 0.0}}'

on both machines, but its only picked up locally, not by the other machine...

Any suggestions?