/challenges-projects/project14/photography/b/blog/posts/window-opening-monitor-with-aruco---installing-opencv-on-the-raspberry-pi-4bWe plan to make a detector of the aperture of sliding windows for our VenTTracker Project that monitors Natural Ventilation Habits in Classrooms.There we implemented two different methods to know the aperture of the window, one using an accelerometeren-USTelligent Community 12