Kanagaraj Reivanth, Arumugam Priya and Devaraj Nataraj*,
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引用次数: 0
Abstract
The article describes the development of a versatile gas sensing platform using an Arduino UNO microcontroller. The system utilizes the widely available MQ3 gas sensor for practical applications in educational contexts. To enhance student understanding of gas sensing principles, the project focuses on exploring the gas sensing properties of the SnO2-based MQ3 sensor, specifically for ethanol detection. The Arduino code collects data at regular intervals and transmits it via Bluetooth to a custom mobile application for real-time visualization. This hands-on project allows students to investigate various aspects of gas sensing, including the linear relationship between the gas concentration and sensor resistance during targeted gas exposure. The platform’s easy-to-assemble design and clear code make it suitable for diverse educational settings from high school chemistry laboratories to undergraduate instrumental analysis courses.
期刊介绍：
The Journal of Chemical Education is the official journal of the Division of Chemical Education of the American Chemical Society, co-published with the American Chemical Society Publications Division. Launched in 1924, the Journal of Chemical Education is the world’s premier chemical education journal. The Journal publishes peer-reviewed articles and related information as a resource to those in the field of chemical education and to those institutions that serve them. JCE typically addresses chemical content, activities, laboratory experiments, instructional methods, and pedagogies. The Journal serves as a means of communication among people across the world who are interested in the teaching and learning of chemistry. This includes instructors of chemistry from middle school through graduate school, professional staff who support these teaching activities, as well as some scientists in commerce, industry, and government.
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