what would be a good example of real-time control system to draw on Matlab

[siemprepeligroso]

I wonder what would be a good example a real-time control system to draw in model-based design application of Matlab known as Simulink...

the device should not be complex but neither too basic...something that is common, interesting and not too complicated

thanks in advance

 

[klystron]

The classical inverted pendulum