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Colour Sensors for Water Quality

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    • 2020-12-07 at 3:38 AM #14879
      James_NZ
      Participant

        Hi everyone,
        I recently had a conversation about using colour sensors to measure changes in water quality. Something similar to the eye on water project (https://www.eyeonwater.org/) except using a colour sensor linked to the Mayfly rather than an app. Has anyone attempted this, or is anyone aware of any work that has looked at something similar (perhaps using a different platform)?</p>
        Regards,

        James

      • 2020-12-13 at 11:53 AM #14903
        Scott Ensign
        Participant

          Hi James,

          I’ve used Atlas Scientific’s RGB sensor on lagrangian river drifters in the past. The application is written up in Limnology and Oceanography (or see this video abstract of the article). I’m attaching two simple sketches for using this sensor with the Mayfly Data Logger. The first (…AutoMode) just prints R,G,B, and Lux at an interval to the serial monitor. The …ManualMode sketch allows you to interact with the sensor using the commands from the datasheet. Please keep the EnviroDIY community updated on your progress.

          Thanks,

          Scott

          Attachments:
          1. RGBsensorAutoMode.ino
          2. RGBsensorManualMode.ino
        • 2021-02-23 at 2:00 AM #15164
          James_NZ
          Participant

            Hi Scott @ensign,

            Thank you for this, and apologies for not getting back to you sooner.  For some reason I wasn’t alerted to your reply.

            This is exactly what I was after!

            Thanks again.  I will let you know how we get on.

            James

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