MATEC Web Conf.
Volume 331, 2020International Conference on Urban Disaster Resilience (ICUDR 2019)
|Number of page(s)||13|
|Section||Instrumentation, Control System and Information Technology|
|Published online||09 December 2020|
Control of light Intensity via Microcontroller for the Efficiency of Electrical Energy
1 Electrical engineering of Makassar Islamic University
2 Department of Electrical Engineering Hasanuddin University
* Corresponding author: Sriwati.email@example.com
Lighting is a factor to get a safe and comfortable environment. Good lighting allows one to see objects that are done clearly, and can give a refreshing view. Conversely, if the room has poor lighting can cause eye fatigue, therefore it is necessary to control the intensity of light-based microcontroller to regulate the lighting of a room automatically. his research was made by designing a lighting model using a dimmer circuit based on ATMega328 microcontroller, LDR sensor (Light Dependent Resistor) and Bluetooth HC-06. The working principle of the LDR sensor is receiving light from the outside which causes changes in the input voltage level to the microcontroller while the Bluetooth HC-06 works by connecting a Bluetooth device with a smartphone that has installed the PWM Light Control application. which is then processed by microcontroller output in the form of pulse voltage (PWM) in the dimmer circuit to adjust the dim and bright lights. Results for electricity voltage (Volt), Electricity (Ampere), Light level (Lux) and electrical power used. At each increase from 0-255 PWM which is channeled to the dimmer circuit, the power is 0-13,0357 watts, comparable to before using a circuit of around 13,5036 watts with a percentage of 1. 7% with a 15-Watt lamp, the light conditions are stable in brightness. The distance of control of this tool reaches 26. 15 m with 1 barrier wall and still works with 3 barrier walls with a distance of 21. 45 m. So that the use of electric power and light can be adjusted to the needs.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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