BAFÔMETRO ELETRÔNICO CONTROLADO PELA PLATAFORMA ARDUINO UNO

Carlos de Oliveira Santiago Filho, Cleymisom Queiroz da Trindade, Daniel Vitor Domont Ferreira, Carlos Alberto Tenório de Carvalho Júnior, Carlos Vinicius da Costa Ramos, Ciro José Egoavil Montero, Júlio Sancho Linhares Teixeira Militão, Wilson Sacchi Peternele

Abstract


DOI: 10.14684/intertech.13.2014.452-456

On a breathalyzer measures the amount of alcohol per liter of alveolar air, ie air from the lungs. The project aims at the development of a breathalyzer, using the sensor of gas MQ-3, a drive microcontroller Arduino Uno and a liquid crystal display. For each concentration of sensor alcohol determines a value displayed on the serial port 'COM3' Arduino Uno with a range from 0 to 1023, this variation corresponds to the output voltage, ranging from 0 to 5 volts of the circuit for each concentration. The concentration is measured appears on the LCD, determining the concentration present in the air.

Index Terms — Bafômetro, Sensor MQ-3.


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ISSN 2317-4382

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