install Apriltag Package on turtlebot
sudo apt install ros-noetic-apriltag-ros
download and make explore_lite package on remote pc
cd ~/catkin_ws/src
git clone https://github.com/hrnr/m-explore.git
follow the pC, OpenCR, Raspberry Pi setup on https://emanual.robotis.com/docs/en/platform/turtlebot3/quick-start/#pc-setup
On pc
roslaunch mr_final_project turtlebot3_explore.launch use_sim:=true
On turtlebot
roslaunch mr_final_project hardware.launch
On remote pc
roslaunch mr_final_project explore.launch