The aim of “BLUESLEMON” project is to develop a low-cost automatic system for monitoring landslide surface displacement using drones and BT beacons. The proposed drone architecture is developed to go beyond the current state-of-the-art techniques and is characterized by autonomous navigation capabilities. The UAV platform is equipped with obstacle-detection sensors and collision-avoidance algorithms, allowing the smart UAS to be easily employed for autonomous navigation, even in case of diverse environments or applications (search-and-rescue operations in alpine environments or automatic surveillance in urban areas).