Research Paper on Solar Tracker With Fire Alarm

The proposed IoT-enabled Solar Tracker and Fire Detection System was successfully designed, implemented, and tested. The Arduino Nano served as the central controller, integrating solar tracking, fire detection, and real-time monitoring into a single platform. The solar tracking mechanism effectively utilized dual LDR sensors to detect the direction of maximum sunlight. Based on the sensor inputs, the SG90 servo motor continuously adjusted the orientation of the solar panel, ensuring optimal alignment with the sun and improving energy harvesting compared to a fixed panel system. The output voltage of the solar panel was measured using a voltage sensor module and successfully transmitted to an online dashboard through the Wemos D1 Mini (ESP8266), enabling real-time remote monitoring. The fire detection subsystem accurately identified flame conditions using an IR flame sensor. Upon detection, the Arduino Nano immediately activated a buzzer and LED indicator to provide an early warning. The integrated relay module also demonstrated the capability to control external safety devices or electrical loads during emergency conditions. Experimental results confirmed that the proposed prototype performed reliably under different operating conditions. The integration of automatic solar tracking, fire detection, voltage monitoring, and IoT connectivity provides an efficient, low-cost, and intelligent solution suitable for residential, agricultural, educational, and small-scale industrial applications.

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