Spectruino > Opensource Arduino Spectrometer.
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DIY Spectrophotometer
Electronics-Lab.com Blog
www.electronics-lab.com/blog/?p=7471

DIY Spectrophotometer
www.instructables.com/id/A-simple-DIY-s...

Build a Spectrophotometer (Schematics included) as a DIY Project
88proof.com/synthetic_biology/blog/arch...

DIY Spectrophotometer
publiclab.org/wiki/spectrometer

DIY Spectrophotometer
topologicoceans.wordpress.com/2011/03/1...

DIY Digital Spectrometer
blizzard.rwic.und.edu/~nordlie/spec

DIY Scanning Spectrophotometer
www.picaxe.com/Project-Gallery/DIY-Scan...

Homemade Spectrometer/Spectrophotometer
nznano.blogspot.com.es/2011/12/homemade...

Beer color estimation by use of a DIY spectrophotometer
eurekabrewing.wordpress.com/2012/07/11/...

Turn Your Laptop Into a Spectrometer
www.popularmechanics.com/technology/how...

Build your own spectrophotometer
www.rsc.org/Education/EiC/issues/2007Se...