Multiple Laser Alarm System using Arduino Uno

computer engineering

Contemporarily, illegal activities such as theft, intrusion, and robbery are frequent in the community. Security systems identical to door locks and alarms are used to mitigate such crimes. In this paper, the researchers propose using a multi-laser alarm system by mainly using Arduino Uno board. Like laser systems common in action films, the project makes use of multiple lasers to detect motion on the location. The device is programmed to produce noise when all the LDR receive zero light from the lasers. The researcher thinks of using multiple lasers to increase the detection of human movement. For an instance, placing one laser in lower places and the latter to a higher height. Cats or rolling rubber ball can trigger the lower laser, but humans can trigger both lasers at the same time. The details of the system and its code is described. Results shows that the system works on a variety of objects.

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