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OK, that makes sense. Thank you!
Matt

Oops, I was just looking over again the code I gave you and realized there’s a mistake in line 41. The levelStatus should be the inverse of the modbus result since 0 is good. (bool levelStatus = !modbus.uint16FromRegister(0x03, 40042)) I corrected it above.

You should be able to copy that chunk of code and apply it to any variable you’re interested in. You can even grab multiple variables in the same query. In the example I typed up I grabbed all six registers for the date/time at once (with the getRegisters call) and then used the uint16FromFrame function to separate them into the component parts.…[Read more]

Correct.

The sequence of variables (and the order of the plots) is fixed.

When you delete a variable result, it’s gone forever. Any data you attempt to add to that result time series will disappear into the ether. Creating a new variable result generates a new UUID; you would have to reprogram your Mayfly to know about the change.

You can…[Read more]

Update: I shipped some kits to Amazon this evening, so they should be available again by this weekend or early next week. The LTEbee adapter boards will be a longer wait though.

Sara, that’s great, thanks for your response. You are correct – a primary reason I’m hoping to use a Mayfly with the Signature is the telemetry. The Isco modem, while I’m sure very nice, is prohibitively expensive and locks the user into going with telemetry the way they have it set up. I also like the ability of the Mayfly to interface with…[Read more]

We are temporarily sold out of both right now but will hopefully get more in stock soon, though I don’t have an estimated date for that yet.

Awesome thanks!

Yes, there’s a quick guide to using the GPSbee listed on the Accessories page.

Sweet – I’ve got it now. Thanks Sara!

Hello Everyone,

I am part of the Little Manistee Watershed Conservation Council here in North West Michigan. We are in the early stages of implementing a series of up to six monitoring stations along 72 river miles on the Little Manistee River. All stations will have CTD and at least one will have a Turbidity sensor. This conversation caught…[Read more]

It looks like you’re using the Arduino IDE. Managing multiple libraries for the Arduino IDE is NOT easy – it is quite a hassle. Have you installed all the libraries following the instructions here: https://github.com/EnviroDIY/Libraries#installing-libraries-in-the-arduinocc-ide? Have installed them more than one time? When you open your…[Read more]

Okay, this should get you pretty far.

#include <Arduino.h>
#include <AltSoftSerial.h>
#include <SensorModbusMaster.h>


// Create the stream instance
AltSoftSerial modbusSerial;
// OR, if AltSoftSerial isn't working consistently enough
// HardwareSerial modbusSerial = Serial1;

// Create the modbus instance
modbusMaster modbus;

// Setup…

[Read more]

I’ve only ever used a much older ISCO automated sampler and that only using its internal programming. This is something new to me; I’m skimming your manual. The Signature itself is obviously more powerful than the Mayfly. Are you just looking to use the Mayfly to report live data in order to avoid buying the ISCO supplied modem? Doing that…[Read more]

Thanks for your response.

I’ve been out of the office and am just now getting back around to trying to set up our data logger. This is my first time trying to set up one of these data loggers, and possibly more importantly is my first time working with Arduino, so I’m still working on understanding everything.

In the DRWI_CitSci sketch I…[Read more]