Arduino Breathalyzer

What is a breathalyzer you may ask? It is a device for estimating blood alcohol content (BAC) from a breath sample.In simple terms it is a device to test weather a person is drunk or not. As the title suggests it runs on the arduino.Our breathalyzer uses the MQ-3 alcohol sensor from sparkfun.It is a simple and fun to do project. This instructable explains how to create your own breathalyzer , making a shield for the arduino , putting the breathalyzer in a box, and making some changes to your breathalyzer.”

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