The project is a Door Alarm System. The System is able to monitor the open or closed status of a door using a hall sensor to detect the presence of a magnet; if the latter is far from the sensor, it is emitted a sound alert with a buzzer. Using two LEDs and a LCD 1602 the status of the door is shown. In addition there is a button that can be used to turn off the alarm when the door is closed.
A full description of the project is in documentation.pdf