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The Sodaq_DS3231 library should work with the current Mayfly boards.  Here’s an example from a few years ago that does basic microSD card logging of the onboard sensors and doesn’t rely on ModularSensors:  https://github.com/EnviroDIY/EnviroDIY_Mayfly_Logger/blob/master/examples/mayfly1_TempHumidLight_simpleLogger/mayfly1_TempHumidLight_simpleLogger.ino

Apologies, this is a link for the repo https://github.com/WEN-Research-Group/Mayfly-to-Sheets

Hello @neilh20 thanks for the reply!

I’ve uploaded one older script to github.com at https://github.com/WEN-Research-Group because this script is getting the data to Google Sheets, and still using the Modular Sensors ecosystem, but the timing is off and it is never entering sleep. It’s just a single file in a repo.

Here’s the broader problem I…[Read more]

Hi @cameronlight, gosh fascinating to do some lateral thinking.

You would need to publish your whole program – preferably on a traceable git, like github.com.

The challenge in software is abstracting the complicated stuff (service layers) to make it look simple by encapsulating it into a simple interface.

Its always fascinating when someone…[Read more]

I downloaded again today and it did not work. There are 47 sub folders in the directory. Maybe I am using the wrong link like I was with the sketch. I got the library from here https://github.com/envirodiy/libraries?tab=readme-ov-file

It sounds like you don’t have all the correct library files installed in your Arduino/libraries folder.  How many sub-folders do you have in that directory on your computer?  When did you last download the ModularSensors library dependency files?

Thank you for the response. I tried without sketch without making any changes and got the same error:

 
<p class=”p1″>/Users/tom/Documents/Work/sketch_nov5a/sketch_nov5a.ino: In function ‘void setup()’:</p>
<p class=”p1″>/Users/tom/Documents/Work/sketch_nov5a/sketch_nov5a.ino:326:5: error: ‘loggerClock’ has not been declared</p>
<p…[Read more]

That sounds like there’s probably an error in your code that is causing one or more missing functions calls to give an error when compiling.  Have you tried compiling the example sketch exactly as it’s written on that github page I linked above, with no edits at all?  If you’re successful in compiling that example, then compare your edited s…[Read more]

Thank you! After switching to the correct sketch I am getting an error saying “logger clock has not been declared”

Section 6 of the EnviroDIY Monitoring Station Manual has instructions and photos related to building the station you have.  Section 6.3 in particular discusses the Hydros 21 CTD sensor that you’re having trouble with.  I’m attaching a screenshot of that section of the manual.  You can see in the photos how the sensor cable has a 3.5mm stereo he…[Read more]

How is the sensor connected? To disconnect a grove plug, squeeze the lock at the top of the white connector and pull it off.  This is the headphone (stereo) jack: https://www.envirodiy.org/product/envirodiy-grove-to-3-5mm-stereo-jack-pack-of-2/. The stereo/headphone connector is just like the one on wired headphones.