Automatic Lighting System Design Using Sound Sensor

Abstract

This study aims to design and implement a sound sensor-based lighting automation system that can function during a power outage. This system utilizes a backup energy source from a battery that is distributed through an inverter to ensure smooth operation of the lights even if the main power is cut off. The Arduino microcontroller is programmed to receive input from the FC-04 sound sensor, which detects sound signals as commands to turn the lights on or off. This system uses a relay as an electronic switch controlled by Arduino, which allows the lights to turn on or off based on voice commands. The test results show that the system functions well, with a fast response to sound changes and efficient operation. The test was conducted using three 5-watt lamps, and the response to voice commands can be done well at a distance of 3 meters. The appropriate sound threshold setting and system response speed provide a smooth and efficient user experience. This study shows that a sound sensor-based lighting automation system can be a practical and efficient solution for controlling household lighting, while also providing ease of use in emergency conditions due to power outages.