Launch Files and Python Nodes

• If you haven't already, create a package named "lab3" to contain your code for this lab.
• Create a Python node that moves the Turtlebot forward (slowly) until it bumps into something. If the obstacle is removed, the robot should continue forward until another obstacle is reached. Test your node.
• Create a launch file named lab1.launch that executes minimal.launch and starts your node. Test your launch file.
• If you have lots of extra time, introduce a ROS parameter to control the speed of the robot. You should read the parameter in your code using rospy and set its value in the launch file.
• Create a folder named submit in the root directory of your workspace and add it to your subversion repository:

      $ mkdir submit
      $ svn add submit
      A         submit
    

• Now copy use svn copy to put a copy of your finished lab into that submit folder and commit. (Make sure you have already added lab3 to your repository.)

      $ svn cp lab3 submit
      $ svn commit 
    

• I'll test your submission as follows, so you might want to try logging in and trying it out:

    $ svn checkout https://svn.cs.jmu.edu/spragunr/GROUP/submit/lab3/ cs480_ws/lab3
  

  After executing this from the home directory I should be able to launch your application.