Journal of Industrial Automation and Electrical Engineering
Vol. 3 No. 1 (2026): Vol 3 No 1 (2026): June 2026

Microcontroller Based Dual Axis Solar Tracker with Internet of Things

Meisi Yulia Putri (Universitas Negeri Padang)
Doni Tri Putra Yanto (Department of Electrical Engineering, Universitas Negeri Padang, Indonesia)



Article Info

Publish Date
01 Jul 2026

Abstract

for large-scale development in Indonesia. However, the efficiency of energy absorption in solar panels largely depends on the position and intensity of the sunlight received. This study aims to enhance energy absorption efficiency through the design of a Dual-Axis Solar Tracker system based on an ESP32 microcontroller integrated with the Internet of Things (IoT) platform. The system employs four LDR sensors to detect the direction of sunlight, two servo motors to adjust the panel’s position along horizontal and vertical axes, and utilizes the Blynk and Google Sheets applications for real-time monitoring and data logging. Experimental testing was conducted under clear weather conditions at Sparco Anak Air Residence, Jl. Bypass Batipuh Panjang, Koto Tangah, on September 24, 2025, from 10:00 to 12:17 local time (WIB). The results show that the system equipped with the solar tracker produced an average power output of 8.41 W, which is higher than the 5.57 W generated by the non-tracking system. The efficiency of the panel with the tracker reached 4.2%, compared to only 2.78% without the tracker, representing a 50.98% increase in power output. These findings demonstrate that the implementation of an IoT-based dual-axis solar tracker system can significantly improve the performance and energy conversion efficiency of solar panels.

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Journal Info

Abbrev

jiaee

Publisher

Subject

Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

Description

Journal of Industrial Automation and Electrical Engineering (JIAEE) is an open-access peer-reviewed journal which is providing a platform to researchers, scientists, engineers, and practitioners/professionals throughout the world to publish the latest creations and achievement, future challenges and ...