IoT-Based Gas Sensors for Monitoring Alcohol Levels Design and Build Munaf Ismail, Jenny Putri Hapsari, Eka Nuryanto Budisusila, Dedi Nugroho
Universitas Islam Sultan Agung
Abstract
Isopropyl ethanol and methanol belong to the same group of alcohols. The latter is usually used as an industrial solvent and not for personal use. Many traditional alcoholic beverage sellers often mix alcoholic beverages known as Oplosan which is a mixed drink that is very dangerous to humans if it contains methanol. Based on this problem it is necessary to construct a device that measures the amount of alcohol in a liquid to classify the type of alcohol. The design and methodology of a gas sensor-based alcohol classification system consists of a series of hardware and software applications. Research and design of an alcohol content measuring instrument using the MQ-3 sensor based on the Wemos mini ESP8266 have been carried out measuring alcohol level. The measurement error value that occurs in this tool is a maximum of 2.75% and a minimum of 0.34%.
