Arduino

The Hands-Free Etch-a-Sketch

A class project pairs a microprocessor and some accelerometers with the classic drawing toy

SparkFun Electronics is showcasing a recent class project from Alex Dow at the University of Colorado. Derived from a box full of SparkFun widgets, Mr. Dow was able to concoct a digitally controlled Etch-a-Sketch.

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The Littlest Arduino

Build a matchstick-sized Freeduino kit and add a 5V battery for microcontroller power in a tight space

Do you need a microcontroller for a project (maybe, ahem, our Mood Cube project?) but case space is at a premium? Well, fret no more. The Really Bare Bones Board (RBBB) Freeduino PCB is the perfect fit.

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Build It: A Smart, Ambient LED

Paired with a sensor, your "mood cube" can change color based on any number of outside stimuli

Ambient technology is the current rage for presenting information in a unobtrusive and, sometimes, sublime manner. Information suited for an ambient format ranges from complex number-laden data streams to simple one- or two-digit numbers. The idea here is that you can glean the same information by simply looking at the color of a cube, rather than consulting a sensor's text output.

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