> For the complete documentation index, see [llms.txt](https://docs.arkelectron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arkelectron.com/tutorials/ros2-and-px4/mastering-precision-landing-with-px4-and-ros2.md). # Mastering Precision Landing with PX4 & ROS2 Master the integration of ROS2, PX4, and OpenCV to achieve precision landing using ArUco marker detection. This tutorial delves into how to leverage ROS2's robust communication framework and PX4's flight control system to implement highly accurate landings for autonomous drones. You'll learn how to configure your environment, process camera feeds, and detect ArUco markers in real-time, enabling your drone to land precisely at designated targets. Whether you're new to drone development or an experienced engineer, this guide provides a step-by-step approach to achieving reliable precision landing with seamless integration into your ROS2 and PX4 projects. {% embed url="" %} Mastering Precision Landing with PX4 & ROS2 {% endembed %} The repository can be found here:\ --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.arkelectron.com/tutorials/ros2-and-px4/mastering-precision-landing-with-px4-and-ros2.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.