Here is my new Arduino parking model, much improved with the use of a much more precise servomotor in managing the opening and closing movements of a barrier, thanks to the stepper motor. The B4R application which runs this car park can be used on the one hand to animate a virtual car park (See video) and on the other hand to animate the "real" Arduino car park.
These B4R applications work very well with an ARDUINO UNO board by respecting the connection instructions, particularly for the servomotor. The SCL and SDA pins of the LCD screen will be connected in this case to the analog pins A4 and A5 of the ARDUINO UNO board