Vehicle Sensor Control for Parking Lot Management System

code for the parking lot management system based on the state machine and Seven segment diplay was provided for debuging purpose. These modules were tested separately working in proper sequence relative to the timing diagram. From the test result, the system has to increment whenever a car is coming in to the parking lot. When a car leaves, the system has to decrement by 1 from the total count(# of car in parking lot). In stead of assuming parking lot is infinite, we restricted the limit of parking spot (7 for max and 0 for min) and elminiate the internal error of system (# of parking spot < 0). Whenever a car is approaching to the gate for the entrance, a signal from the sensor for the entrance (S_en) is fired off to the system then the system checks if a parking lot is not full. If the parking lot is not full the system enable the solenoid to open the gate. The system makes an increment in the count of the car and displays the result. Whenever a car is approaching to the gate for the exit, a signal from the sensor for the exit (S_ex) is fired off to the system then the system opens the gate. The system makes a decrement in the count of the car and displays the result. Idle state: The state is reset first; the state remains in this state if both inputs from Hall effect sensor S-en = 0 and S-ex = 0. Otherwise it goes the next state Solenoid entrance state: From signal entrance state once it is checked that the parking...