The project, Intrusion Detector for Domestic Applications, its about a system capable of measuring distances to a target (probably an intruder) and issuing an alarm when a given limit is reached. When this happens, the distance, as well as the date and time of the occurrence, are registered into a flash memory.

The system can be programmed through a console consisting in a 4x4 keypad and an LCD. In addition there will be a sensor that monitors the environment temperature.

The console’s LCD shall display continuously the distance measured by the ranging device and the temperature sensed by the temperature sensor. Upon being given a command on the keypad, it shall display the date and hour during 5 seconds.