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Build a Controllable Coffee Roaster from an Air Popcorn Popper

Build a Controllable Coffee Roaster from an Air Popcorn Popper

I have a passion for coffee.  I also have a passion for electrical engineering.  Why not combine them? This Instructable describes how I transformed a hot air popcorn popper into a completely controllable coffee roaster!  Follow these instructions to re-purpose and hack your West Bend Poppery Popcorn Popper into this coffee roaster! ———————————————————————————————– The extraction

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Augmented Water using arduino

Augmented Water using arduino

The Augmented Water device helps you save water by turning red after one Liter. The device, built by @tamberg during a water hackathon, is made from an Arduino, a flow sensor and coloured LED pixels. Video https://www.flickr.com/photos/tamberg/14346321456/ (thanks kiilo) In case you want to build your own, read on… Material Arduino, e.g. http://www.adafruit.com/products/50 Ca. 7

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