pi3 $ cd ~/
pi3 $ git clone https://github.com/brianfire/ball_delivery.git
pi3 $ cd ~/ball_delivery
pi3 $ source environment.sh
pi3 $ cd ~/ball_delivery/catkin_ws/
pi3 $ catkin_make

pi3 $ cd ~/ball_delivery
pi3 $ source environment.sh
pi3 $ sudo chmod 777 /dev/ttyACM0
pi3 $ roslaunch launcher switcher.launch 

pi3 $ rostopic pub /switcher_command std_msgs/Bool "data: false" 

pi3 $ rostopic pub /switcher_command std_msgs/Bool "data: true" 

pi3 $ cd ~/ball_delivery
pi3 $ source environment.sh
pi3 $ roslaunch demo ball_delivery.launch