> For the complete documentation index, see [llms.txt](https://docs.hello-robot.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hello-robot.com/stretch4_docs/working-with-stretch/teleoperation/stretch-mobile-teleop.md). # Stretch Mobile Teleop ## Overview Stretch has a website for teleoperating the robot from a web browser. This website can be set up to teleoperate the robot remotely from anywhere in the world with an internet connection, or simply eyes-off teleop from the next room on a local network. The codebase is built on ROS2, WebRTC, Nav2, and TypeScript. ## Launching the interface First, navigate to the folder containing the codebase using: ``` colcon_cd stretch4_web_teleop ``` Next, launch the interface: ``` ./launch_interface.sh ``` In the terminal, you will see output similar to: ``` ############################################# LAUNCHING WEB TELEOP ############################################# Validating web teleop installation... ✓ Installation validation passed Setup environment... Stopping previous instances... Reload USB bus... Check rmw_zenohd... rmw_zenohd already running. Start ROS2... ROS2 launch output: /home/hello-robot/stretch_user/log/web_teleop/stretch4_web_teleop_202606111320/web_interface_launch.txt Run webpack... Start local server... Start robot browser... ############################################# DONE! WEB TELEOP IS UP! Visit the appropriate URL(s) below to see web teleop: Localhost: https://localhost/operator Ethernet: https://192.168.1.10/operator WiFi: https://192.168.1.110/operator ############################################# ``` The launch script validates that the interface was correctly installed. If there is an error when launching web teleop, the error will print in terminal. Look for a URL like `https:///operator`. Visit this URL in a web browser on your personal laptop or desktop to see the web interface. Ensure your personal computer is connected to the same network as Stretch. You might see a warning that says "Your connection is not private". If you do, click `Advanced` and `Proceed`. Once you're done with the interface, close the browser and run: ``` ./stop_interface.sh ``` **Note:** Only one browser can be connected to the interface at a time. ## Usage Guide --- # 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: ``` GET https://docs.hello-robot.com/stretch4_docs/working-with-stretch/teleoperation/stretch-mobile-teleop.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.