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A comment on DIY Raspberry Pi Spectrometer Guide. Parent comment

Re:DIY Raspberry Pi Spectrometer Guide by nbernard on Friday January 21, 2022 @04:47PM (#30030423)
As well as Chromatogiraffery's channel: https://www.youtube.com/channel/UCZ8l6SdZuRuoSdze1dIpzAQ
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