Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

An Energy-efficient Microcontroller-based Smart Light Controlling System

Version 1 : Received: 27 June 2021 / Approved: 12 July 2021 / Online: 12 July 2021 (11:50:31 CEST)

How to cite: Islam, M.S.; Debnath, S.C.; Azam, M.S.; Rahaman, M.; Hoque, M.A.; Bahar, A.N.; Kowsar, A. An Energy-efficient Microcontroller-based Smart Light Controlling System. Preprints 2021, 2021070251 (doi: 10.20944/preprints202107.0251.v1). Islam, M.S.; Debnath, S.C.; Azam, M.S.; Rahaman, M.; Hoque, M.A.; Bahar, A.N.; Kowsar, A. An Energy-efficient Microcontroller-based Smart Light Controlling System. Preprints 2021, 2021070251 (doi: 10.20944/preprints202107.0251.v1).

Abstract

In this work, an energy-saving smart light controlling system has been proposed that can main-tain the desired intensity of light in a room automatically. Unlike the conventional light control system, the proposed system splits a large room into several zones and analyzes the light inten-sity of each zone; hence, the controlling unit adjusts the light intensity to the desired level. The main controlling unit consists of a light sensor, a motion sensor, a relay with a driver unit, an LCD display, etc. for controlling light efficiently to reduce the power waste. The sensors meas-ure the intensity of light, based on the standard light intensity data chart the controller units make a decision how many light bulbs are needed to be switched ON/OFF in a particular zone. Moreover, the system automatically switched-OFF all light bulbs when there is nobody in the room. Proteus design suite 8.0 is used to design and simulation of the proposed system. Moreo-ver, the PCB layout is designed using ExpressPCB version 7.5.0. The proposed system is capable of minimizing the power loss by up to 44% in comparison to the conventional light manage-ment system.

Subject Areas

smart light control; microcontroller; light sensor; motion sensor; energy saving

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