Matt Barney

@mbarney Hello Matt,

I am running into a similar problem with my Maxbotix sensor code…having difficulty integrating the code into my DRWI modular sensor code…. do you mind sharing coding tips to add this sensor module?

@mbarney & @neilh20, the CSV downloads are not an effective way of accessing data gaps, because that mechanism relies on the same corrupted catalog crosswalk that underlies the problem with the sparkline plots.

There are really only two ways for you to assess data gaps:

• Keep a record of server response codes from RESTful POST requests, from…

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The sensors the student ordered have the stereo plug and a red cable.

@neilh, we have a calculated temperature compensation in Modular Sensors if you ever need it. It’s extremely negligible in groundwater temp ranges.

@mbarney, the Meter discrepancy is a bit annoying. Was your March order a bare wire or stereo plug?

@mbarney  its a common problem with low power, sleep circuits.

Just to be clear/restate what the issue is. When in “sleep” mode and powered off, all instrument pins (and actually all other processor pins) need to be set to output low, or input with preferably pull down.

On power-up, the pins are activated output and set high within 50mS so as…[Read more]

@mbarney the trace looks good for the waking portion. What I see on  my system is that it wakes every minute and then sleeps inbetween.  So if you have it on a 15minute setting it will do above, then sleep/wake 14times. The current can be read when it goes to sleep.

For the differential case I would think you would have two sets of dividers.  BT…[Read more]

@mbarney an observation, the power is being turned off on the off board ADS1115, but not for the Turner. The ADS1115 Analog inputs are only specified for Vdd+0.3V. If either of the Turners inputs are above this, then it will feed through to the ADS1115 Vdd  Sw5V.  Probably won’t account for what your are seeing.

I found a I needed to know when i…[Read more]

I’m sorry I’m late to this.  But @mbarney the problem with turning off power to I2C devices isn’t universal.  It depends on how your external I2C device is wired.  If the SCL and SDA of your external device are directly pulled up to the incoming Vcc, then when you turn off the switched power, suddenly the system SCL and SDA will be pulled *<…[Read more]

Hi @mbarney  I have come across the I2C issue, and trying to remember what I did, or solution. There was an update that  could fix it, but of course that is a fork.

It might have been that a wrongly soldered I2C for a humidity device caused the problem for me. Arduino paradigm is typically normal use cases.

The Mayfly 0.5b has pullups R8 & 10 o…[Read more]

Thank you @mbarney!  That’s all correct!

And just FYI, prior to version ~5 of PlatformIO, libraries were only updated in the PlatformIO registry when the registry crawler got to it and noticed the change.  So sometimes it would be a day or two before you could see the updates using the pio lib update or similar commands.  With the current ve…[Read more]

Hi @mbarney, I’m combing through the forum topics with no replies, hoping to get some answers for folks, and found this one you posted last July. I’m sure you already discovered this, but the three example code links you listed no longer return 404s. Perhaps @srgdamiano was reorganizing the examples at the time?

• DRWI_CitSci.ino
• DRWI_LTE.ino

…

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Haha, that worked! Thanks @mbarney.

Thanks for reporting, and thanks to @mbarney for opening a GitHub issue. The development team is taking a look.

Well after running for some time with the WiFi S6B, and still having problems after it has been running for a couple of hours,
I’ve switched to one my target field internet comms of Digi XBee3 LTE-M over Verizon.

Very interesting the Digikey RevXsystems https://dataplans.digikey.com (thanks to @mbarney for the suggestion) has a new low cost…[Read more]

@mbarney

I have the same issue.  I have my LEC stations (GMI_ECxx) running with 2G cell service and I did have one station that the solar charge chip failed and caused battery to drop below the 3.55  volt threshold for upload.  However GMI_EC5 seems to be getting a charge during the day but is still not keeping up.  I attached a screen from MMW…[Read more]

And @mbarney, WRT buying new parts.. I’m still not happy with the failure rate of the XBee’s, but I don’t have any suggestions for anything better.

@lemmon – most of them were deployed in the field working and stopped for no apparent reason.  I didn’t realize we’d had so many failures until Shannon dumped them on my desk the other day.

@mbarney – we’ve gone back and forth over and over about the transparent-vs-bypass issue.  My experience has generally been that the modem connects more q…[Read more]