An IoT Based Smart Lighting System Based on Human Activity

A poor lighting system can cause eye-fatigue, glare, headache, short-sightedness and accident to the users. Therefore, appropriate lighting is very important in our working environment as well as our home. In daylight, natural light from sun helps to illuminate the indoor space. However, this natural light is very much dependent on the weather or windows position. If natural light is not enough to illuminate the interior, the light bulb is used to illuminate the space. However, current lighting system does not allow illumination control based on ambient light. The aim of this project is to provide appropriate lighting in the home based on human activities for the comfort of sight and eye health. This system consists of a dimmer circuit to control the artificial light illumination, a microcontroller (Arduino) with Bluetooth module, light sensors and an Android smartphone. The system measures the intensity of ambient light and controls the artificial light to achieve used-defined lighting. An apps is developed using Android smartphone for users to set their activity. This IoT-based system allows user to choose up to nine activities. A prototype is developed and tested to verify the feasibility of the system. The results show the developed apps allow the user to set the activity and the brightness of the light bulb is in accordance with the specified activity.