10 wavelength colorometer

[Greg_Austic]

Just thought this may be a good place to post about the project we’re working on. We built a small, field-ready and robust 10 wavelength colorimeter for applicants from chlorophyll content in leaves, to estimating soil organic carbon in soil. Many applicants don’t need a full spec, and this device provides enough wavelengths to do lots of interesting predictive analytics. We’re also attempting to use it to estimate food quality (freshness, antioxidents, etc.) as an open source and actually functional alternative to much of the other stuff out there.

You can find the files here: https://gitlab.com/our-sci/reflectance-spec-PCB
And the food quality and soil quality stuff we’re doing with it relates to this project: http://our-sci.net

Anyone else out there working with spectral data, or building databases for calibrating instruments of this type? Always interest in collaboration.

Thanks and how sweet is it that Chris Frieking Gammell set up this site, shout out to Amp Hour

[paulvdh]

Nice project, even though I do not know much about these things.
Sometime ago I saw a teardown from Mike’s Electric Stuff from an old sprectrometer. Nice combination of optics and electronics.

Could this be a candate for https://kicad.org/made-with-kicad/

Also, this sentence seems to have a small typo:
“Next, someone has to put all the parts of the board.”