Design and Simulation of an Automatic Cooling System for Solar Panels Using DHT22 Sensor Based on Arduino Uno

Solar panels use renewable energy to convert sunlight into electricity. However, when sunlight heats the surface of the panel, it can degrade the panel's ability to convert energy. So, an automatic cooling system is required to keep the panels at the right temperature. This research focuses on designing and simulating an automatic cooling system for solar panels. The system uses a DHT22 temperature sensor and an Arduino Uno microcontroller, so that the cooling adjusts to the surrounding temperature. The system will turn on the cooling pump based on the following temperatures: below 33°C (pump off), between 33-36°C (pump 1 on), and above 37°C (both pumps on). The design was tested using Proteus software to ensure the circuit works, and the main program was created with the Arduino IDE. Simulations show that the system accurately responds to changes in temperature in real-time. The system also automatically changes the status of the cooling pumps based on the set temperature. This system can be a useful and energy-efficient way to keep solar panels working properly, especially in hot areas.