A sensor which uses sound waves – in the case of quadcopters and multirotors they are usually used to determine the distance from the ground by bouncing sound waves off of it. In typical
use, they work only for a few meters above the ground or other surface.
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I am an enthusiastic amateur photographer with a big passion for photography who loves to take pictures. I’m always aiming to learn new photographic skills and would like to spend more time out in the field or on a photo shoot with my camera.
