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.
Sure, [Hunter Scott’s] Breathalyzer can only differentiate between hammer and sober, but look how nice it came out. He’s using an MQ-3 alcohol sensor which, from previous projects, we know is very ...
No matter who you are, you produce garbage of some kind or another. Two students decided they wanted to create a smart garbage can that could alert them when the can is full or even when it is stinky.
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