DUAL AXIS SOLAR TRACKER SYSTEM WITH BLYNK MONITORING AND CONTROLLING

The performance of a solar power system depends mainly on how effectively the panel receives sunlight during different times of the day. In most practical installations, solar panels are fixed in a single position, which limits their ability to capture maximum energy as the sun moves. To address this issue, a dual axis solar tracking system with IoT-based monitoring is developed in this work. The system is designed to automatically adjust the position of the panel in both horizontal and vertical directions based on the availability of sunlight. In this setup, Light Dependent Resistors (LDRs) are used to sense the intensity of light from different directions. The sensed values are processed by an Arduino Nano controller, which then controls DC motors through an L293D driver to rotate the panel accordingly. An ESP8266 module is used to transmit the output voltage to the Blynk mobile application, allowing the user to monitor the system and control connected loads remotely. From the testing results, it was observed that the system is able to track the sunlight effectively and maintain better alignment compared to fixed panels. The overall design is simple, low-cost, and suitable for small-scale applications where improved solar energy utilization is required.