Alcohol sensor

I went out with some friends to a local festival, and done some field testing.

On the good side, collected some data about the scaling of the raw numbers the device displays, but the prototype broke after 3 days of "constant testing".

Got some good ideas to the second version, like adding a button to hold the measured data and some layout updates.

Its kind of a cheap and fun project. The arduino code is a simple one, too, just some analog reading and handling the display.

In retrospect, i would use the pro mini, instead of the nano.

I realy like the nokia display, cheap and power efficent, easy to use thanks to the adafruits pcd8544 library, which is compatible with the adafruit GFX interface.

If there is any intrest, i will post the source of the project and some building instructions (which is realy trivial).