i need to design a car park indicator system for a space with 8 lots.
With two gates each entrance to the parking lot And one exit from the parking lot.
Hardware works on the principle of LDR Once the LDR is covered changes something.
it needs to have the following specifications: a seven-segment display to indicate the number of free lots.
presettable up/down counter
Counter displays the entry and out of cars
each lor has a light which will turn on to indicate that is free
the light should turn off when the lost is occupied
when the lot is filled to the maximun of 8 cars, the seven-segment should display 'F' the indicate it is full.
Once car comes the front gate and LDR covers the gate opens
Once he passed the gate and covers the second LDR gate closes
The same principle also exit.
I need it urgently
Thanks u
