The project illustrates how an Arduino board was interfaced with MQ-3 Alcohol Gas Sensor to create the Breathalyzer. One ADC input of Arduino is required to obtain the simple connection of the sensor.
A new open source hardware (FOSH) and software (FOSS) system has been created by Inelemento based in Italy to help you exercise your breath and aid meditation and relaxation. The Arduino-based device ...
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