Pengembangan Kalorimeter Sederhana Berbasis Akuisisi Data Real – Time Menggunakan Arduino IDE

Abstract

The use of conventional tools in physics experiments, such as manual thermometers in calorimetry, often causes significant measurement errors (human error), affecting the accuracy and precision of data acquisition. This study aims to develop a simple calorimeter based on real-time data acquisition using the Arduino IDE as a practical and affordable solution for learning heat experiments in school and college laboratories. The calorimeter system is designed by utilizing a DS18B20 digital temperature sensor integrated with an Arduino Uno microcontroller to monitor temperature changes in real-time during the mixing or heat release process. The recorded temperature data is displayed through the Arduino IDE Serial Plotter interface, making it easier for users to analyze temperature change graphs. The development method includes hardware design, data acquisition system programming, and calorimeter performance testing using water samples at different temperatures. The test results show that the calorimeter is able to produce temperature data with a fast response and accuracy that is good enough for basic learning purposes, with an average deviation level of less than 2% compared to standard laboratory equipment. This system is also considered easy to use, economical, and replicable for physics practicum activities. Thus, this study concludes that this Arduino-based calorimeter has the potential to be an effective, interactive learning medium for heat experiments and supports a more comprehensive understanding of the concept of heat through real-time data monitoring.