alcohol gas sensor MQ3

[imeener]

I am doing a project in which I want to build a breathalyzer.  I got a MQ3 alcohol sensor, but am having problems setting up the DAQ assistant to get the correct readouts.  I'm stuck....does anyone know what I should try next???

Thanks for your help in advance!!!

[AnalogKid2DigitalMan]

Must resist, but can't- did you drink the prescribed number of beers in the manual to calibrate your scaling factor 🙂

Seriously, can you post documentation on the MQ3 and how you have it wired to your DAQ card, and what DAQ card are you using. Also post your code too.

-AK2DM