I am looking for a wireless portable spectrometer. I am expecting the spectrometer can detect light intensity and wavelength(around 400-500nm: Blue, 500-60nm: Green). That's my point for asking a question. I think UV illumination device might be ready to measure those two parameters with the spectrometer. Otherwise, is it possible to make the spectrometer by using a photoresistor? But, I am not sure anything. I am open to buy a commercial one with a reasonable price, or consider DIY. Would you give me an advice? Thank you in advance.

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