pip install opencv-contrib-python==3.4.2.16
pip intall numpy

cd ~/catkin_ws/src
git clone https://github.com/ifonya22/zavtrav3
cd ..
catkin_make

roscore

roslaunch turtlebot3_gazebo turtlebot3_autorace.launch

roslaunch turtlebot3_gazebo turtlebot3_autorace_mission.launch

roslaunch zavtrav3_autorace_core autorace_core.launch

rostopic pub -1 /robot_start