DIY Spectrometer for $35!

This neat article came across my Twitter feed this morning – a DIY spectrometer for $35!  You can view the plans here, and the creators have started a Kickstarter project to build a public database of spectra for comparison with unknown materials.  The creators have even written open-source software to collect and analyze spectra from their spectrometers.  For those in the know, the spectrometer has a wavelength range from 400-900 nm and a resolution as good as 3 nm.  You can either buy the parts yourself or buy a kit from Breadpig.

Inside view of DIY Spectrometer

DIY Spectrometer, inside view.

By the way, the site hosting the plans, Public Lab, is an open community that investigates environmental issues with DIY tools.  The site is quite a bit of fun to poke around, and I will be re-posting some of their more interesting educational ideas.

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