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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>
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.