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@craig607, thank you for posting this! Would you consider expanding on it as a guest blogger here on EnviroDIY?

The pump project that I used can be found here: https://www.thingiverse.com/thing:3148717

Marlin: https://marlinfw.org/

Here is how I currently put this strategy into action. A wifi connected outlet turns the machine on and off.

https://youtu.be/c7tz9yOD6Wc

@lyh2o I wonder, assuming you have this in the office, if you could enable some debugging and post it.
The debugging most useful is
-DMS_ENVIRODIYPUBLISHER_DEBUG
so depending on how you build, but if platformIO it would be on a separate line
build_flags =
-DSDI12_EXTERNAL_PCINT
-DNEOSWSERIAL_EXTERNAL_PCINT…[Read more]

I’m also unable to delete sites (Server Error 500), and unable to delete sensors (no errors, but nothing gets deleted). I am going to report this via an issue at the Github site for the MMW data portal:
https://github.com/ODM2/ODM2DataSharingPortal/issues

The dipswitches are mainly there to let people know their board is working during initial testing or desktop deployments.  Anytime a board is deployed in the field as a “sleeping” station, power savings are important during the sleep period.  So I put the dipswitches on the new versions of the Mayfly to allow people to deactivated the LEDs.  Th…[Read more]

Thank you so much Shannon!

One very minor last question – for the DIP switch, that would be turning the USB DIP to ‘off’ for the purposes of LED operation, correct? The ‘Power’ DIP switch would remain ‘on’?

Thank you!

Dave

I decided to try to make a new site in order to try to work around the problem, but that hasn’t seemed to work either. I’m now getting 504 response codes. The data is still uploading to MMW but not publishing. I have to be missing something obvious, right? The new site is NTNWD in the same spot.

/**…

[Read more]

@shicks.  I tested the converters you recommended and they appear to work as expected:

dropout voltage is 8 Volts and will support input voltage to 31.5 V (max on my bench PS).

No load draw is 3.64 mA at 12 V and 2.83 mA at 31.5 V.

A lower cost option is a three terminal non-isolated converter at $2.76 ea vs $12 for the PlusRoc.

Powering the Mayfly v1.0 and v1.1 from the solar jack only would not be recommended because the power input circuit was not designed to operate that way.  The most electrically efficient way is to use the 12v-to-5v converter and connect it to the USB-C jack and then deactivate the USB interface circuitry with the dip switch as explained above.  T…[Read more]

Shannon,

I ordered several boards in the 1.0 release in the fall as replacements for 0.5 boards that are currently in the field. Our setup for those involved using DIN rails to connect large marine cycle batteries so we could keep our terrestrial stations operational during the winter. So, we used the 12v regulator on the 0.5 board and it has…[Read more]

Great – I’ve asked https://www.instrumart.com/ if they plan on stocking it.

Something to note, a bit strange, is it comes up in SDI-12 mode, and needs an initial configuration to switch to RS485.
From getting some initial success – it may be worth starting with SDI-12 and getting some responses. Alternatively talk with a tech rep as to how they…[Read more]

It did seem to make a difference in the short term but the problem started again. My latest fix was to ground the analogue signal cable to the battery negative. I’ve done this now on 4 rain gauge systems and it seems to be very reliable. Should have done it sooner.

Neil/Anthony,

I think we will be able to purchase one Keller CTD this year and I will work on getting it going on the Mayfly 1.1 in whatever spare time I can find in my schedule. I appreciate all the input so far and I am looking forward to digging into this in the coming months. I will keep you both posted as I get going… I’m sure there will…[Read more]

That’s great, I’m glad it worked.  Based on your screenshot, I can tell that your station is running a sketch that I programmed onto that Mayfly board in March of 2018.  It’ll still work if you’re using the same CTD and turbidity sensor it originally had on it, and it will save data to the memory card every 5 minutes.  It had the ability to tr…[Read more]

It’s ALIVE!

St. Patrick’s Day miracle…

Chip cleaned with 91% but still a bit corroded – but Adafruit CP2104 manually attached (not soldered) and iMac picked up the com port, I adjusted baud rate until gibberish became legible.  Will have the adapter soldered together and we should have a working machine.

Thanks so much for your time and help!

Dave

As stated on the Details and Spec page, the Mayfly v1.1 can only source about 100mA from the 12v output, so if your motor draws 400mA, you’ll need to power the motor directly from your 12v source and not from the Mayfly.