UAV is a development of automated robots, UAVs themselves to focus on making flying robots. UAV's are a safe and efficient method of monitoring dangerous environments or to take aerial photography, for example.
To create a UAV we will need a lot of sensors that are used to read his surroundings, such as: slope UAV, air pressure, speed rotor, and so forth. To make more sophisticated UAVs, we also have many uses sensors.
some examples UAV developed by ardupilot:
