Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, a web toolkit designed to help citizens, conservation practitioners, municipal decision-makers, researchers, educators, and students advance knowledge and stewardship of fresh water. New to EnviroDIY? Start here

Monitor With Mayfly

Our EnviroDIY Mayfly Data Logger is user programmable and Arduino IDE compatible.

Program Your Mayfly

Get sketches, libraries, and documentation to help you program your Mayfly.

Stream Your Data Online

Share your data and access data from around the world on Monitor My Watershed®.

Get Answers on the Forum

Have a question about DIY environmental monitoring? Share it with EnviroDIY members.

All content on EnviroDIY is licensed as Creative Commons Attribution-ShareAlike 4.0. Hardware designs on EnviroDIY are released under the CERN Open Hardware License 1.2. Alternative licenses are available. Learn more

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Upcoming Events

  1. Open Source Electronics for Water Research and Real-Time Water Monitoring

    September 27 @ 8:00 AM - September 28 @ 6:00 PM

Did you know you can buy the Mayfly Data Logger and other EnviroDIY products in bulk at a discount in our Shop? You’ll also find products there that aren’t available on Amazon.com.


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