Design and Manufacture of LPG Gas Leak Detection Based on Arduino Uno Using MQ-2 Sensor

Aims: To design and manufacture LPG gas leak detection tool that is more efficient, relatively cheaper and can be carried because it has a smaller shape and size compared to tools on the market Study Design: Design of LPG gas leak detection based on Arduino Uno using MQ-2 sensor. Place and Duration of Study: Physics Study Program, Faculty of Mathematics and Natural Sciences, Universitas Udayana, from June 2023 to October 2023. Methodology: The trial and error method is used to calibrate the designed tool with standard tools. Calibration is done by comparing the distances value of the LPG gas leak detection using MQ-2 sensor and the calibration standard tool. The relationship between the measurement values of the design tool and the standard tool is determined using linear regression method to obtain a correction equation. Results: LPG gas leak detection based on Arduino Uno using MQ-2 sensor have been produced. The measurement accuracy obtained 97.97%. The accuracy value indicates that the resulting tool has a good level of accuracy to the standard tool. Conclusion: In this research, has been produced LPG gas leak detection more efficient, relatively cheaper and can be carried because it has a smaller shape and size, low-cost with high accuracy.