I would use fiber optic input and leave the spectrometer out. Ocean optics used to have small one and probably lots of other companies.
On Sunday, September 3, 2017 at 2:59:25 AM UTC-5, Cory Geesaman wrote:
The subject pretty much says it - I'm trying to find a (hopefully cheap - under $200) Arduino or RaspberryPI compatible photospectrometer which can be submerged for long periods of time in water to log water quality. I've been searching around a bit and can't find any, but if someone knows of one which could be hacked fairly easily (sticking it in a new case for instance) that would be great too. I'm not too worried about calibration (I can calibrate the thing and write the code needed to identify different ions from a bunch of data,) just want to avoid having to designed the thing from a capillary tube up though light sources and sensor if at all possible.
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