The dissertation was designed, implemented and exclusively a measurement system that includes a
commercial EEG device and is intended to promote science.
The thesis will include basic measurement of electrical quantities of the human brain. With the help
of a measuring tower in which the ball will be, I will show the level of attention and relaxation and
show the measured activity of the human brain.
From the EEG signal, we can tell if a person is relaxed or focused. This is required from the voltage
frequency in the EEG signal. Both data signals are predicted by a bluetooth module connected to the
Arduino Nano controller. It processes the raw data and then sends it to the fan. The controller has
the task of controlling the speed of rotation of the windmill, which will create overpressure in the
measuring tower. A windmill is attached to the motor shaft, which blows air through the measuring
tower and creates a laminar air flow at the exit of the tower. Due to the different cross-sections, the
wind speed changes, and a laminar current appears at the top of the tower, which will cause the ball
to float stably above it.
As the brain becomes more concentrated, the motor application will start faster, and as a result, the
ball will also move higher. When the brain is less concentrated, the ball will be lower.
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