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I just ordered a couple more sensors today and got this message from Meter “HYDROS 21s are currently on stop ship due to issues with EC readings. Our team is hoping to have this resolved soon.”

Thanks for the explanation – I do so appreciate that the code at 9600 baud works, and there is a lot of hard work gone into configuring it  – as you say to work both first off and subsequent power ups.

Coming from a  real time programming background I keep forgetting about the simplicity of Arduino. So I keep tripping over  issues like this – it…[Read more]

The processor on the Mayfly isn’t clocked fast enough for reliable two-way communication at 115200. It’s pretty reliable at talking at that speed (ie, to the serial monitor), but when listening at that speed, it drops and garbles too many characters to be usable.

I don’t know why you had problems compiling the sketch. It compiles and runs for me…[Read more]

Thanks for the update with cct – (at least sorry if I didn’t see it the first pass).
Thanks for the reference to the sketch. I tried running the sketch, and I just couldn’t get it to compile – 3hrs trying – sometime I just admit defeat and move on. So I used it as an example with another sketch that I have running and got it working.

So super…[Read more]

There’s a link to the schematic on the item page along with a link to an example sketch on Github.

I just reviewed the data during the week of 12/19/22.  There was a quite a spell with board temps down to -17 but I didn’t see any evidence of freezing in the data.  The turbidity sensors appeared to be recording as normal (didn’t go to zero at all) and the depth didn’t show any big increase (as was illustrated in the troubleshooting s…[Read more]

Hi Shannon,

Thanks again for such a prompt and thorough reply, yet again.

We have continuous data starting in last July.  The variation in depth over four months was consistently in the neighborhood of +265-275mm.  There was a period of very cold temps around Christmas and the edge of the stream froze but I don’t think that the probes were e…[Read more]

The CTD sensor you have is a digital output sensor, meaning all of the measurement happens onboard the sensor and it outputs a string of 3 numbers, all the Mayfly logger board is doing is capturing those numbers and storing them.  If there was a problem with the Mayfly board, then you wouldn’t get the numbers at all, and there’s no calibration or…[Read more]

Hi,

After collecting nearly a year’s worth of data, it is clear that the depth sensor values are all over the place.  I’m attaching a file that shows the variability between the staff gauge and the mayfly depth sensor.  There doesn’t seem to be any pattern to the variation that I can determine.  I tried graphing the data to see if something wo…[Read more]

Can a 900 MHz XBee radio be used with the ModularSensors library? I noticed that there is are DigiXBee.cpp and DigiXBee.h files in the modems folder. Can modem objects created with that class be used with the logAndPublishData() function found in most ModularSensor examples that use XBees, or is there a different way of integrating 900 MHz XBee…[Read more]

@srgdamiano I made a header and cpp file for the Teros 12 by copying the 11 files and adjusting them. When I try to use it, the outputs recorded to my SD card are all -9999 values, and the column headers for the variables are never added (but it will add the headers for the other variables besides the Teros). I get the same problem when I use the…[Read more]

Okay, sorry I am not very software savvy (especially when it comes to C++). Would you suggest just copying and pasting the Teros 11 sensor files and then just adjusting the copy to handle the Teros 12? I’m not very confident in my abilities to make a new module that captures everything correctly.

Are you singned in as the same user for both sites? Right now, a user can only be associated with a single organization.

I think the bests solution would be to create a new “module” (h/cpp) for the Teros 12.

We’re actively working on getting funding to further develop an efficient data access API.

@srgdamiano would you know how to best approach this?

Thanks so much @srgdamiano. I noticed your comment “This endpoint serves as a temporary access point between the shut-down of the WoFpy service and the development of a more efficient and permanent service.”  Are you aware of anything in the works to create this “more efficient and permanent service”? That being said, I think I can see how to do…[Read more]

I have a jupyter notebook showing how I get data here: https://gist.github.com/SRGDamia1/d5bf4b651756a19a6df1a653b9493a6e