[JK_WCCD]

Hello,

We have been experiencing some issues with our mayfly readings. Attached is an image of one our previous temperature readings over the course of about a month. We are not sure why the readings periodically go haywire and then go back to normal. We are seeing the same inaccurate readings for conductivity and water depth. To give some background, the sensor got buried under a gravel bar back in early April and we had to dig it up and reattach it to the stake. We ended up having to attach the sensor upside down on the stake.

Could there have been some possible damage to the sensor to be causing the inaccurate readings? Are there any methods to try and fix or reset the mayfly to get accurate readings again?

Our site code is “Wash_Co_Watershed_Alliance – Site 1”

Thank you.

 

Attachments:

1. 

   Screenshot-2025-06-16-085605.png
   

[JK_WCCD]

I figured out the issue but I am now facing another error. I keep getting the following error message –

C:\Users\Documents\Arduino\libraries\EnviroDIY_ModularSensors\src\sensors\AlphasenseCO2.cpp:17:10: fatal error: Adafruit_ADS1X15.h: No such file or directory
#include <Adafruit_ADS1X15.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1
Error compiling for board EnviroDIY Mayfly 1284p.

 

Any help would be appreciated. Thank you.

 

[JK_WCCD]

I have modified the sketch by replacing the UUID list in the original NoCellular sketch with my UUID list from Monitor My Watershed.

[JK_WCCD]

I am using Arduino 1.8.19

I checked the libraries using your method and I do see all the examples and the sketches under the ModularSensors list.

I now ran into another problem which I believe is related to the DS3231 clock. I was able to set the time correctly using the directions from this page – 4. Preparing the Mayfly Data Logger – EnviroDIY

However, when I tried to upload the sketch for DRWI_NoCellular, I got the following error window:

 

Arduino: 1.8.19 (Windows 10), Board: “EnviroDIY Mayfly 1284p”

C:\Users\Documents\Arduino\libraries\EnviroDIY_ModularSensors\src\sensors\MaximDS3231.cpp: In member function ‘virtual bool MaximDS3231::startSingleMeasurement()’:
C:\Users\Documents\Arduino\libraries\EnviroDIY_ModularSensors\src\sensors\MaximDS3231.cpp:46:33: error: no matching function for call to ‘Sodaq_DS3231::convertTemperature(bool)’
rtc.convertTemperature(false);
^
In file included from

C:\Users\Documents\Arduino\libraries\EnviroDIY_ModularSensors\src\sensors\MaximDS3231.cpp:10:0:
C:\Users\Documents\Arduino\libraries\Sodaq_DS3231\src/Sodaq_DS3231.h:73:10: note: candidate: void Sodaq_DS3231::convertTemperature()
void convertTemperature();
^~~~~~~~~~~~~~~~~~
C:\Users\Documents\Arduino\libraries\Sodaq_DS3231\src/Sodaq_DS3231.h:73:10: note: candidate expects 0 arguments, 1 provided
exit status 1
Error compiling for board EnviroDIY Mayfly 1284p.

This report would have more information with
“Show verbose output during compilation”
option enabled in File -> Preferences.

[JK_WCCD]

Yes, I believe I have. It looks like I downloaded all recommended EnviroDIY libraries (47). Do I need to do anything with them once I have them in my library folder? Do I need to install all of them in Arduino somehow?

[Author]

Posts