Programming with ros let turtlebot run on the line automaticlly.
When met with a cross, it should choose the direction the arrow points. The color of arrow could be blue, green, red or yellow.
You are allowed to touch the turtlebot twice.
The ground is shown by the picture below.
Turtlebot 2
Xtion PRO
Laptop with ubuntu 16.04
Ros kinect
Prilo