Now that you have configured the network connections and are able to ping between machines, you can control the turtlebot from the master using the Keyboard Teleop launch file.
Open a new terminal on the master laptop:
roslaunch turtlebot_teleop keyboard_teleop.launch
You should see the IP_OF_TURTLEBOT near the top of the terminal window.
You can test drive the Kobuki base by using the Keyboard teleop launch file located in the turtlebot_teleop package
roslaunch turtlebot_teleop keyboard_teleop.launch
The Turtlebot has an additional program that can follow an entity in a designated window.
roslaunch turtlebot_follower follower.launch
Using the configuration GUI for ROS you can modify the parameters of the follower.
In a new terminal: rosrun rqt_reconfigure rqt_reconfigure
Select camera/follower on the reconfigure gui.
Play with the sliders and see how the parameters effect the Turtlebot’s behavior.