Shannon Hicks

If you’re having trouble getting all the libraries to work happily together, you could try downloading all of the ModularSensors dependency libraries from the release files on github:https://github.com/EnviroDIY/ModularSensors/releases

You can scroll down that page and find the zip file at the bottom of each release summary (under the “Assets”…[Read more]

Are the 3 solder jumpers on the back of your 6-pin screw terminal board soldered properly?  We noticed a few of them came from the factory with no solder on them, so I soldered them in the “Default” position before shipping them out, but there’s a chance yours might have been missed.  You can also try closing solder jumper SJ25 on the back of t…[Read more]

The b_address_change sketch you attached looks like an older version, it doesn’t match the latest example you can find on our Github: https://github.com/EnviroDIY/Arduino-SDI-12

So make sure you’re using the latest Arduino-SDI-12 library files (download that directory from Github and replace whatever is currently in that folder on your PC.  And…[Read more]

This thread is for general technical questions about the Mayfly v1.1 board.  I don’t know what video you’re referring to, but I assume you’re using an example sketch from our Github repo or that was included with the ModularSensors library that you downloaded.  Any example sketch we provide should have a section near the top that says what h…[Read more]

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

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?

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]

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]

What sketch are you running?  The debug statements above are mentioning Digi Xbee module, but your photo shows a Simcom SIM7080 module.  The code for a Digi Xbee modem is not compatible with the Simcom module shown in the photo.

If you’re trying to use the configuration shown in the photo, along with a Hyrdos 21 CTD sensor (as indicated in your c…[Read more]

What is the control board that you’re using between the Mayfly and the pumps?  Something with some relays?  How is it connected to the Mayfly?  Via Grove cables or the 2×10 header pins?  Can you post some photos of the setup, or maybe a wiring diagram?

Did you make the changes to the Mayfly’s solder jumpers and sketch?  There’s a discussion about the necessary changes here:  https://www.envirodiy.org/topic/digi-ltebee-on-mayfly-v1-x/

Digi brand boards won’t work with the Mayfly v0.5 boards unless you also use one of the special adapter boards we used to make and sell, but we haven’t used those since 2020 when the Mayfly v1.0 boards came out.  The 1.0 and 1.1 Mayfly boards eliminate the need for an adapter between the Digi board and the Mayfly, but you still have to make…[Read more]

I know several people who have told me they’ve deployed Mayfly loggers in sensor stations on buoys or some other sort of floating platform, but I don’t think any of them have shared their methods or photos of their equipment.  We’ve done several ourselves over the past few years, and I’m attaching a photo of one of our most recent versions.  The l…[Read more]

There are descriptions of the battery and solar panel options in section 6 of the Monitoring Station Manual knowledge base, and also on this page about Mayfly Logger Battery Options.

No, we’ve been busy with other projects and haven’t had time to do any more testing with the Digi modules.

What do you mean by “it has told me the file belongs to another station”?   The Mayfly is giving you that warning?  Or do you get that warning if you try to manually upload files to MonitorMyWatershed.   How many files are on the microSD card after a week-long or month-long deployment?  It should be one continuous file unless the logger is resta…[Read more]

Yes, the EnviroDIY sim7080 LTEbee module is compatible with the previous versions of the Mayfly board.  There are no hardware changes to do, but you will have to edit your code slightly.  The v1.x boards control power to the Bee socket (bee header pin 1) by using the the Mayfly’s D18 pin, allowing you to completely turn the 3.3v supply to the b…[Read more]

Have you replaced the battery pack with another, fully-charged one?  Sometimes when they are going bad (the metal under the battery’s plastic wrapper rusts after a few years in enclosures with condensation issues) they can cause intermittent power outages, which are sometimes hard to detect if your solar panel is capable of supplying enough power…[Read more]

It looks to me like the CTD sensor was damaged during whatever event happened on April 5.  Unfortunately the sensors are very sensitive to physical damage so you’ll probably need to replace it with a new one.

We haven’t had a chance to do further testing on why the Digi modules only worked a few times after startup, but it sounds like you experienced the same thing we did.  We’ll see if we can revisit the issue and make sure our existing software examples work with them or if we’ll have to make a few changes.