Abstract. This paper analyzes the features of MEMS and the possibility of their use to build AHRS with flexible parameters, with the aim of using them on unmanned aerial vehicles. It is shown that the correct use of newer versions of modern MEMS, which have 3-axis gyroscopes, accelerometers and magnetometers, can provide complete and accurate information about the orientation of the UAV in space.

Key words: MEMS applications, magnetometer unit, inertial measurement unit (IMU), attitude and heading reference system (AHRS).