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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]

Oh also forgot to mention that I’m fairly certain I’ve switched the meter hydros 21 factory address away from 0 in the past.

Using ModularSensors doesn’t necessarily require the sensors to be directly connected to the Mayfly.  They could be, but they don’t have to be. In the case of a lot of inexpensive sensors sold as breakout boards, the Mayfly connects and talks directly to the sensor, but most of the not-bare-circuit sensors have black-box layers between the raw…[Read more]

Ok great, thank you for taking a look. Yes I2C is too short range for the applications I have in mind, but I have some experience with RS485 so that sounds like a good option.

I’m not very familiar with your ecosystem, but would using ModularSensors require the Mayfly to be connected directly to the sensor? So if my sensors are natively I2C, I…[Read more]

I spent some time skimming your GitHub code for your device.  If your logger is using a simple serial protocol to communicate with your GUI controller, it should also be able to communicate with the Mayfly (with or without Modular Sensors) in the same way if you expose the Serial (or AltSoftSerial) pins.

ModularSensors already supports the MS5803…[Read more]

We don’t have any set requirements for connection.  The Mayfly can communicate with almost anything that could communicate with an Arduino-style device.  Many users opt to user our ModularSensors library to run their loggers, but that library supports many protocols.

SDI-12 devices are very common in the environmental sensing field, so we have a…[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 Mayfly board we have is distinctly different from the board in the video.  We have version 1.1 revision B  board # 25069.  When we try to put in the UUI for data sets for the conductivity probe we get a compiling error message at the very last step.   I did not post this on the forum yet because I suspect we have a newer version of the boar…[Read more]

I’m glad that solution worked for you too! After getting this to work on my board with the older versions, I haven’t done any more work looking into the issue. I’ve just been using those older versions and everything has been working fine with it deployed for almost a year now.

Hello, I encountered this same issue recently and this was the fix! Going down to Modular Sensors v0.34.0 as well as older versions of tinygsm and sdfat.

If you’re only running the sketches from Modular Sensors, you should delete all of your libraries and download the bundle from the ModularSensors release page: https://github.com/EnviroDIY/ModularSensors/releases/tag/v0.37.0 (Direct download link:…[Read more]

Another difficulty, I’ve realized that the clock is stopping with the off switch.

Using the example scripts ‘adjust’ and ‘now’ I realized the clock is keeping time when the board is off. Is there a chance I have altered some of the base functionalities that come with the mayfly?