DEVELOPMENT OF GREEN TECH OFF-GRID COOLING AND HEATING PORTABLE TABLE USING ARDUINO UNO WITH SOLAR BACK-UP POWER SOURCE

Abstract

Addressing environmental issues and promoting energy conservation require the development of sustainable technological solutions. This study focuses on a portable table that uses an Arduino Uno with a solar backup power source to provide off-grid heating and cooling. By combining these technologies, the system offers a versatile and environmentally friendly method of controlling temperature in various environments. The process includes system design, prototyping, and testing to determine effectiveness. The prototype integrates Peltier modules, resistive heating components, and Arduino Uno–based automated control. Performance tests verified its ability to reach the target temperature, ensuring both operation and energy efficiency under different conditions. The successful application of this portable table demonstrates its potential as an environmentally friendly heating and cooling option. To perform this study, the researchers used the Experimental Prototyping Method. Building the concept and prototype as an experiment that can be approved or rejected is known as experimental prototyping. According to Smith (2021), when building a new product, someone builds a prototype to provide answers to specific questions. Prototype experiments ensure that the questions are precise and testable with the prototype and that the prototype is tested consistently across all users. The system was connected to a relay and composed of an Arduino Uno microcontroller. The Arduino Uno microcontroller was powered by a 12-volt supply, with an adapter used to connect it to the solar charge controller. The prototype’s power supply, with an input of 220V AC, was rectified into an output of 48V DC, which then passed through the buck-boost converter to step down to 12V. The power supply was connected to the buck-boost converter, which was connected to the battery. The battery, in turn, was connected to both the solar charge controller and the solar panel. The system underwent extensive testing to determine its efficiency, reliability, and functionality. Results from the survey and performance assessments were also analyzed to validate the effectiveness of the prototype.