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Hi Nancy,

I don’t use the Arduino IDE, but as a workaround, I’d try downloading a previous version of ModularSensors. Delete ModularSensors from your Arduino libraries folder, and grab a zip of the previous version, 0.27.8 from the Releases page on github and install it instead.

-Matt

I called Meter Group tech support because my manual only showed the 3.5mm jack connection, bare wires were not addressed and they confirmed your connection, Shannon. (red to D2, white to Vcc, and black to GND) I also had a 4th bare wire that he told me to wrap with electrical tape and tape it out of the way so it can’t cross other connections. He…[Read more]

My experience with Hologram Pilot Plan on the 2g network was as follows:

3 parameters (Conductivity, Temp, Depth) returned in addition to DateTime @ 15 minute intervals

Average daily use = 715 B per day.  As an example we used 1.34 MB in the month of March 2020.

So for 1 station the cost is easily < $20 per year (in the pilot plan). However,…[Read more]

Hi all,
I’m new to all this so still using ArduinoIDE for now.  I’m getting a similar error when trying to change the address for a Meters CDT sensor.  (One of the ones I recently purchased was recalled so I am trying to connect a different one).

The error reads “Invalid version ‘0.28.01’ for library in: C…[Read more]

Confirmed via the PIO forum: https://community.platformio.org/t/valueerror-invalid-simple-block-0-28-01/19759

I suspected that was it! Confirmed that the .1 works for me as well.

I don’t believe 0.28.01 is valid, per semver.org: “Numeric identifiers MUST NOT include leading zeroes.”

Interestingly, sometimes PIO will fail silently when I use 0.28.01 via lib_deps (no error message), but it doesn’t install the lib dependencies at all. When I change it to…[Read more]

I recently had this problem too!

The solution was to type:

lib_deps = envirodiy/EnviroDIY_ModularSensors@0.28.1

So, drop the “0”. Everything worked well, and it properly fetched v0.28.01.

I’m not sure why Sara added that 0 to this version, but I suspect is was for a reason, but unfortunately the PlatformIO library registry doesn’t like having…[Read more]

Shannon, yes, the outer jacket color I received is black. Good to know about the possibility of sensor damage or bricking.

Thanks for the info Brian.  I heard they were switching cable outer jacket colors soon, and a few of our workshop attendees last month received Hydros 21 sensors with black cable instead of the usual red, so I’m assuming the inner wire color changed too.  Their soil moisture sensors also changed inner wire colors a few years ago, and the manual s…[Read more]

They did not give me a pinout, I just did trial and error of figure it out. I think next time I’ll purchase a stereo jack adaptor and try connecting it to the Mayfly that way.

Brian, when they did this color change did they give you a pinout? (I love when they do this…)

Shannon, I received 3 Meter CTD-10 (HYDROS 21) sensors this week and they did change the wire colors. For me brown is power (VCC) and orange is data (D2). I also had to use the b_address_change sketch to change the SDI-12 address from 0 to 1.

For a Meter Hydros 21 sensor, check the manual that came with the sensor to double-check that they haven’t change the wiring colors lately, but the usual pattern is red is data, white is power, and black is ground.  So connect red to D2, white to Vcc, and black to GND.  For that screw terminal board, D2 will get connected to D7 if you plug the g…[Read more]

A status for testing with 0.28.01 – after integrating to this release with the SDI-12 bug fixed and then leaving it running for two weeks, using a Verizon LTE CAT-M1 has worked very well.  A deliberate characteristic of this test setup was to have a very limited solar aspect  a small charge at maximum 0.5A in the morning- but the overall power u…[Read more]

Jim fascinating, thanks for sharing and been re-reading your document a couple of times.

(I’m redoing my previous post as I got a bit excited with a power discussion).

I use a higher threshold V for transmitting cellular information. The voltage is dependent on the battery type/capacity and the load on the battery.
I use 3.8V as a threshold to…[Read more]

Through Digikey RevX there are some new data plans that cover up to 50MB for $6/month

https://dataplans.digikey.com/

Using Digi LTE CAT-M1 modems, with Verizon SIMS from Digikey, transmitting 8 values, taking readings every 15minutes, and attempting reliable transmission every 2hours, in a riparian valley in a remote area of N California, (so…[Read more]

I’ve been using primarily VSCode for a while because it loads faster on my computer, but I believe I set Atom up to force ino’s as cpp’s:  https://docs.platformio.org/en/latest/integration/ide/atom.html#force-arduino-file-as-c

In case its of interest, I’m using the EEPROMClass from EEPROM.h

.platformiopackagesframework-arduino-avrlibrariesEEPROMsrc
<div>
<div>    EEPROM.put(EP_PERSISTENT_STORE_ADDR, epc.app);  where epc.app is a typedef containing all the values to be stored/read from persistent EEPROM.</div>
</div>
<div>and simi…[Read more]