Activity

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?

Have you installed all the supporting libraries into your Arduino/libraries folder?  There should be either 32 folders worth of libraries, or 47, depending on whether you downloaded all the recommended EnviroDIY libraries, or just the ModularSensors dependencies.

Have you tried measuring the voltage being applied to the sensors by using a voltmeter when the channel scanning sketch is running?  For the turbidity sensor’s screw terminal board, put the voltmeter’s red probe on either of the V+ screws, and the black probe on either of the GND screws.  For the CTD sensor’s 3.5mm headphone jack adapter board p…[Read more]

Hello, we’ve returned to try and set up the two sensors again but are still running into the issues of both being vacant at every location. We have tried both of them individually and have changed the 3.3v position to the 12v position for the Clarivue sensor. The Hydros is still connected to the 3.3v. We have also changed the sketch for the…[Read more]

@d_manning just wondering if you have had any insights 🙂

In your 4th picture, it looks like the Grove cable plug may not fully be seated in the grove jack.  Not sure about any of the other ones since the angles in the photos didn’t show them well, but be sure that it’s pressed all the way into the jack.  And your second photo shows that your two SDI12 Grove jack voltage selection jumpers are both set t…[Read more]

Here are a few pictures of our setup.

Can you describe how you’ve connected the sensors to your Mayfly, there are multiple ways to do it correctly with the adapters we offer and even more if you’re doing it a non-traditional way.  Better yet, could you take a pictures of your setup showing how you’ve connect each of the sensors to the Mayfly?

Thank you so much for the quick response! Could you detail how to make sure we are supplying the 12v to the ClariVue? That being said I am still a bit confused as to why the Hydros 21 would read as vacant when it is the only sensor connected during testing and it would run regardless of the voltage.

When the sensor is powered, you should be able to put the two probes of a voltmeter on the little screws on top of the screw terminal board where you’ve connected the ClariVue’s cable to the Mayfly.  Put the black probe on the Gndscrew and the red probe on the V+ screw.   You’ll know the sensor is being powered when the red LED on the bottom le…[Read more]

The calibration sheet from Turner was very accurate for the new sensor, so if you don’t want to buy expensive rhodamine standard right now, you’re probably fine to use the data from the sheet.  But we’ve found that the sensors tend to drift over time so we do quarterly recalibrations of the sensors to make sure they’re still accurate.

Here’s a…[Read more]

Both of those sensor models ship from their manufacturers with their SDI12 address set to ‘0’ (zero).  In order for the Hydros21 sensor to work with the Mayfly logger in SDI12 mode, you MUST change the address of the sensor to anything other than zero (otherwise the sensors is in TTL output and not SDI12).  It’s okay for the ClariVue sensor to r…[Read more]

Shannon,

Thank you for the confirmation and write up for the sketch setup. I just have the phycocyanin C-FLUOR. This is my first time soldering, so I’m practicing on another board before I commit on the MP screw terminal board.

Have you notice big differences between the calibration sheet versus your manual calibration? And for the manual…[Read more]

Yes we are using a Mayfly v1.1! As for the 12v source, I am not too sure. I did not put the board together originally so it’s been operating how it’s been since it was put into place.

I will be back soon to check on it again with a voltmeter. Could you explain how I can check if it’s using the correct 12v configuration?

Much appreciated,

Elliot