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> * A Zero W hooked up to a PM2.5 to do air quality monitoring in the house. Just bought a couple more sensors for it (VOC, eCO2, etc), but haven't hooked them up yet.

We have neighbors that smoke, and sometimes based upon wind patterns it blows into our yard. Any idea if they have sensors that can pick up this sort of thing so I can close our windows?

Next step. Have the pi auto close your windows

You'll probably need to research what the particle size(s) is(are) for cigarette smoke, but this detects a bunch of different sizes: https://www.sparkfun.com/products/15103

I have some code to read from this, it's not too hard. PM me if you're interested in my code. (I can open source it.)

Should be picked up by a PM2.5 sensor.

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