Datasources

Input Circuits/Sensors 

Open Source Spectrometer's Based on Arduino:

• http://myspectral.com
  Very advanced used on space missions , developed on Arduino.

• http://publiclab.org/wiki/spectrometer
  Can build this one for less that 50 Euros and looks good for my research.

Databases

There is a lot of spectrum Database's both commercial and open I will only be looking at visible light or Near infrared.

• Spectral Database for Organic Compounds SDBSS
• National Institute of Advanced Industrial Science and Technology (AIST)
  Japan.ectral Database 
• National Institute of Standards and Technology
  This site contains IR (gas phase mostly), Mass Spectra and a few UV-visible spectra.
• MassBank
  Retrieves spectra similar to user’s spectrum in terms of the m/z value. This search is helpful to identify chemical compound by comparing similar spectra on a 3D-display.

Depreciated: no longer relevant.

• ChemSpiderNot much Spectra at quick glance.
• NMRShiftDB
  No need to registrer to search for and predict NMR
• Sigma-Aldrich
• KnowItAll
• The Defense Spectrum Organization (DSO)

Metal Detectors:

• http://ditrwsld13125710.blogspot.ie/search/label/Electronic Circuit+Metal detector
  Spectrometer/Colorimeter:
• http://ditrwsld13125710.blogspot.ie/search/label/Electronic Circuit+Colorimeter
  Based on Emedded Systems:
• http://ditrwsld13125710.blogspot.ie/search/label/Electronic Circuit+Embedded