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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 about licenses and attribution
Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, an initiative of Stroud Water Research Center designed to help people advance knowledge and stewardship of fresh water. Our EnviroDIY Mayfly Data Logger is user programmable and Arduino IDE compatible.
Get sketches, libraries, and documentation to help you program your Mayfly.
Share your data and access data from around the world on Monitor My Watershed®.
Have a question about DIY environmental monitoring? Share it with EnviroDIY members.
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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 about licenses and attribution
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Community Activity See all activity
Kara replied to the topic Relocating Data Loggers to new Sites in the forum Mayfly Data Logger 3 months, 3 weeks ago
Hi Shannon,
Thanks so much for all the help, these were originally purchased by my organization in partnership with Trout Unlimited. TU did all the preliminary set up so the manuals I had on hand only covered field installation and troubleshooting.
It looks like we have Mayfly version V1.0 (according to our manuals) and our cell board is the…[Read more]
Shannon Hicks replied to the topic Relocating Data Loggers to new Sites in the forum Mayfly Data Logger 3 months, 3 weeks ago
If you are physically relocating a monitoring station that reports to MonitorMyWatershed (MMW) then it’s best to create a new site instance on MMW for the new station. That way all the old data that was collected at the original location will still show up on the map at the original location. If you edit the MMW location for an existing site, t…[Read more]
Kara started the topic Relocating Data Loggers to new Sites in the forum Mayfly Data Logger 3 months, 3 weeks ago
Hi all,
I am trying to relocate my data loggers to new locations to monitor water quality at a restoration site. These data loggers have been used in the past at separate project sites and I have several questions about updating these to the new sites.
[Read more]
Kara became a registered member 3 months, 3 weeks ago
Kara
@kara_bee23
PRHealth-Index became a registered member 3 months, 3 weeks ago
PRHealth-Index
@byob11
Bert Rubash became a registered member 3 months, 4 weeks ago
Bert Rubash
@bertrubash
SK became a registered member 4 months ago
SK
@swkoehler
Sara Damiano replied to the topic Unable to Compile Error Message in the forum Mayfly Data Logger 4 months ago
From your error messages, it looked like you have mismatched versions of libraries. I’m not sure how permissions are set up on your PC, but typically the Arduino libraries would be stored in a personal user folder that you could change at…[Read more]
YorkCoMWS replied to the topic Unable to Compile Error Message in the forum Mayfly Data Logger 4 months ago
We downloaded them on Dec. 1 2025 and we had to let Penn State IT department download them because I am using a PSU computer. I have a feeling that PSU firewall or IT security may be part of the issue.
Nick became a registered member 4 months, 1 week ago
Nick
@nicholas_picazo