• jetson-torch https://forums.developer.nvidia.com/t/pytorch-for-jetson-version-1-7-0-now-available/72048/5

• discord install https://linuxconfig.org/how-to-install-discord-on-ubuntu-18-04-bionic-beaver-linux

• gazebo9 install https://www.programmersought.com/article/57944393651/

• gazebo에서 drone 실행하는 방법 -> 순서대로 하기

  1. https://docs.px4.io/master/en/dev_setup/dev_env_linux_ubuntu.html#gazebo-jmavsim-and-nuttx-pixhawk-targets
  2. https://docs.px4.io/master/en/simulation/gazebo.html

• qgroundcontrol install https://docs.qgroundcontrol.com/master/en/getting_started/download_and_install.html

  -> sudo usermod -a -G dialout 사용자이름

• qgroundcontrol 3.5.6 https://github.com/mavlink/qgroundcontrol/releases/tag/v3.5.6

• 이 에러 날때 Unable to register with master node [http://localhost:11311/]: master may not be running yet. Will keep trying. -> roscore 명령어 실행

• roscore 안될 때 https://answers.ros.org/question/60366/problem-with-roscore/

• Obstacle avoidance base setting https://github.com/Jaeyoung-Lim/avoidance

• roslauch 실행할 때 반복해야할 것

cd ~/Firmware

export QT_X11_NO_MITSHM=1

make px4_sitl_default gazebo

. ~/Firmware/Tools/setup_gazebo.bash ~/Firmware ~/Firmware/build/px4_sitl_default

export ROS_PACKAGE_PATH=${ROS_PACKAGE_PATH}:~/Firmware

echo export GAZEBO_MODEL_PATH=${GAZEBO_MODEL_PATH}:~/catkin_ws/src/avoidance/avoidance/sim/models:~/catkin_ws/src/avoidance/avoidance/sim/worlds >> ~/.bashrc

source ~/catkin_ws/devel/setup.bash

roslaunch global_planner global_planner_stereo.launch

rosrun mavros mavsys mode -c OFFBOARD rosrun mavros mavsafety arm

gz camera --camera-name=gzclient_camera --follow=iris

roslaunch safe_landing_planner safe_landing_planner.launch

• Obstacle avoidance https://github.com/mmmmmmwei/obstacle_avoidance_drone

• catkin build error https://github.com/catkin/catkin_tools/issues/525

• sudo apt install libpcl1 ros-melodic-octomap- ros-melodic-yaml- no package error

  sudo apt install libpcl1 ros-melodic-octomap-* 만 진행

• RLException: while processing /home/inhwa/catkin_ws/src/avoidance/global_planner/launch/mavros_sitl.launch: Invalid roslaunch XML syntax: [Errno 2] No such file or directory: u'/home/inhwa/catkin_ws/src/avoidance/global_planner/launch/mavros_sitl.launch' The traceback for the exception was written to the log file

  경로 바꿔줘야 함

• Resource not found: px4 error

https://github.com/PX4/PX4-Avoidance/issues/596

source /opt/ros/melodic/setup.bash

source ~/catkin_ws/devel/setup.bash

스테레오 local_planner

https://swiftcam.tistory.com/274