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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. ![]()
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
Community Activity See all activity
Shannon Hicks replied to the topic Parts list, European vendors – Water level and ph in the forum Mayfly Data Logger 22 hours ago
We’re really excited to partner with Labcrafter so they can be a source of our products to people in Europe. As for sensors, the Maxbotix MB7389 you mentioned is probably your best bet for low cost ultrasonic rangefinding. Just be sure to order the TTL version so it’ll work straight into the Mayfly board (the RS232 sensor would require an i…[Read more]
jsterling replied to the topic Library issues in the forum Mayfly Data Logger 1 day, 1 hour ago
/** ========================================================================= * @example{lineno} EnviroDIY_Monitoring_Kit.ino * @copyright Stroud Water Research Center * @license This example is published under the BSD-3 license. * @author Sara Geleskie Damiano <sdamiano@stroudcenter.org> * * @brief Example for DRWI CitSci LTE sites. * *…[Read more]
jsterling started the topic Library issues in the forum Mayfly Data Logger 1 day, 2 hours ago
I’m working on building a sensor station using a Mayfly Data Logger v. 1.1, EnviroDIY cellular bee, a Hydros 21 CTD sensor. I am using the sketch EnviroDIY_Monitoring_Kit.ino and the Modular Sensor Libraries v0.37.0. I am having a difficult time getting my sketch to compile. I am receiving the following error that it cant find…[Read more]
Jasper started the topic Parts list, European vendors – Water level and ph in the forum Mayfly Data Logger 5 days, 3 hours ago
<span style=”font-weight: 400;”>Hi EnviroDIY community. We’re looking to set up 1-2 EnviroDIY stations in Ireland.</span>
<span style=”font-weight: 400;”>We’re currently looking at multiple potential use cases. Water level monitoring for a kayak club and water level + ph monitoring for two environmental groups.
</span>
<span sty…[Read more]
Jasper became a registered member 5 days, 4 hours ago
Jasper
@jasper
Al DeLuca became a registered member 6 days, 8 hours ago
Al DeLuca
@adeluca
Omid became a registered member 1 week, 2 days ago
Omid
@omidnikrou
Sabin replied to the topic EspressifESP32 in the forum Mayfly Data Logger 1 week, 2 days ago
Never mind. The wifi worked. I used
AT+CWMODE?and change it from SoftAP to Station mode.But I am struggling to use this to connect to mqtt broker.
Sabin started the topic EspressifESP32 in the forum Mayfly Data Logger 1 week, 2 days ago
How to connect to Wifi while using this in Mayfly data logger?
I have been trying this codebase or even the one with tinygsm library but nothing works. Is there any pre-configuration that is needed to be done?
[Read more]
caroline@wachusett started the topic Mayfly MicroSD card not recording properly in the forum Mayfly Data Logger 2 weeks, 3 days ago
Hello,
We’ve had a Mayfly station that had the Mayfly board (version 1.1a) replaced in April of 2025. We download the data monthly and the board has been working well up until this spring. When I checked the data for April, the microSD card (8 GB SanDisk Edge) had multiple file extensions I have never seen (see photo from May 6th). The microSD…[Read more]