RANCANG BANGUN LAMPU OTOMATIS MENGGUNAKAN SENSOR CAHAYA BERBASIS ARDUINO DI POLRES PEMATANGSIANTAR

A Lights are one of the basic needs in everyday life, both household offices, and others, especially at Pematangsiantar Police Station. In line with rapid development field technology, amount electricity demand tends to increase rapidly. This can be caused by increasing number people using electrical technology. However, there a wise attitude use this lighting energy source. If lamp is left on, it will waste electricity. often happens because you forget turn off. But if turned off then night dark until someone turns on light. Therefore, automation needed regulating lamps. case, an automatic design was made Arduino-based light sensor that set automatically according intensity sunlight received so suit lamp. equipped Arduino, LDR module, relay. The load usually operated manually humans, study, human intervention operations reduced. results study showed implemented lights.
 
 Keyword: Design, Automatic Lights, Light Sensors, Polres