Alcoholmeter

Linearized response to measuring ethanol vapor concentration in air in ppm (parts per million in 0-3000 ppm range).

Alcoholmeter with MQ3 alcohol sensor.

Secondari School project by Agnes Garriga and Manel Tuells.

Tutored by Lluis Nadal.


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Connector2analog out
R139 Ohm
R210 kOhm
R3500 Ohm-1%
C147 microF



/media/uploads/lnadal/calibration.jpg

Calibrating the MQ3 sensor.




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Using the alcoholmeter.



Code:

Import programAlcoholmeter

Alcoholmeter with MQ3 sensor


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