The work described in this diploma thesis was performed in the company Hidria d.o.o., which produces air conditioning systems and automotive components. In the laboratory, where measurements of heating, noise, vibrations and air flow are carried out, a need for a new way of testing fans appeared, i.e. controlling the pressure in the loading chamber. The purpose of the task is a "proof of concept", if the control is feasible and useful. The thesis presents the conceptual idea and theoretical background of the task itself, the description and requirements of the system's operation. It describes step by step how the development was peformed, what problems we faced, and what are the results and conclusions. The thesis describes the system itself, the microcontroller, the pressure sensor, the circuit design and circuit manufacturing, the programming of the microcontroller, and the production of a practical product and testing of the system.
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