Development of an IoT-Based Solar Light Intensity Measurement Device for Real-Time Analysis of Light Intensity Across Different Angles and Time Periods

Abstract

This study aims to develop a solar illuminance measurement device capable of displaying data on computers, tablets, and smartphones; to identify the position and angle with the highest daily solar illuminance to calculate the average solar illuminance and to evaluate the device’s performance. The measurement device was designed as a rectangular box, 11cm x 13cm x 6cm, housing various control components, with a total mass of 600g. The front of the box features an LCD screen displaying numerical light levels. A motor, connected to a light sensor adjustable to angles of 0, 15, and 30 degrees, is mounted on top. The device effectively measures solar illuminance at specified time intervals and angles, reporting and displaying values in lux (lx) on the side screen and via the website solartracker.ks-iotech.com, accessible on computers, tablets, and mobile phones. When used for measurement, findings indicated it could measure from 07:00 to 17:00, recording illuminance at 0, 15, and 30 degrees. Results showed the device successfully collected data across all three positions, with 15 degrees exhibiting higher illuminance than 0 and 30 degrees. The peak illuminance occurred at 12:00, while the lowest was at 17:00, with the 15-degree angle having the highest average illuminance. authors may have to resubmit. A good abstract should have only one paragraph and its length should not exceed 20 lines. Do not include a table or a figure.