# Work with ROS from browser Using the [`roslibjs`](http://wiki.ros.org/roslibjs) library it's possible to work with all the ROS resources (topics, services, parameters) from JavaScript code within the browser, which allows creating various interactive web applications for drone. All the required software is preinstalled in [RPi image](image.md) for Clover. ## Example An example of a web page, working with `roslib.js`: ```html ``` [Taking off, landing and all the rest operations](programming.md) can be implemented in a similar way. The page should be placed in the `/home/pi/catkin_ws/src/clover/clover/www/` directory. After that, it will be available at `http://192.168.11.1/clover/.html`. When the page is opened, browser should show an alert with the drone telemetry and constantly print the state of the flight controller to the console.

See additional information in [`roslibjs` tutorial](http://wiki.ros.org/roslibjs/Tutorials/BasicRosFunctionality). ## Web GCS See an example of simplified web ground control station on Clover at http://192.168.11.1/clover/gcs.html.