Recent content by weihenstephaner

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  1. W

    Fermentation monitor

    A while ago I was looking for a way to monitor how far along my fermentation is without opening it and taking samples. I think I came up with something affordable. Using an arduino nano and an MQ3 gas sensor I can measure the alcohol content of the gas bubbling out the airlock. This is a...
  2. W

    Freezertron

    I posted a little blog entry here: http://www.bposhaughnessy.com/electronics/?p=49 There are pictures/source code etc there.
  3. W

    Freezertron

    So a few weeks ago I came by a free freezer. Since I had everything I needed, I built a small temperature controller, hooked it up to a spare netbook, and it is happily maintaining and logging its temperature now. I live in an apartment, so I've primarily done extract kits. I ferment them in...
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