IOT Integration in Two-Axis Sun Tracking System with LDR Sensors in a Wheatstone Bridge Circuit

In recent years, solar energy has gained significant attention as a clean and sustainable source of power. To maximize the efficiency of solar panels, it is crucial to track the movement of the sun and ensure optimal exposure to sunlight throughout the day. In this project, propose a two-axis sun tracking system that utilizes Light Dependent Resistors (LDR) as sensors and employs the Wheatstone Bridge Circuit for accurate sun position detection. Additionally, the system integrates Internet of Things (IoT) technology to enable remote monitoring of the solar power generation process. The two-axis sun tracking system consists of two main components: the sensor module and the control module. The sensor module consists of LDR sensors strategically placed to detect the intensity of sunlight. The Wheatstone Bridge Circuit is employed to measure the resistance changes in the LDR sensors and accurately determine the sun's position relative to the solar panels. The control module processes the sensor data and generates control signals to adjust the direction of the solar panels accordingly. Furthermore, the system incorporates IoT technology to enable real-time monitoring. The collected sensor data, including the generated voltage and the panel direction, are transmitted to a cloud platform via wireless communication protocols such as Wi-Fi or cellular networks. Moreover, the integration of IoT technology facilitates remote monitoring, enabling users to optimize energy production and identify any potential issues promptly. Keywords—Wheatstone bridge, LDR sensors, DAST system, PV panel, closed-loop system, Internet of Things.