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  D_Manning replied to the topic Artifactual troughs and flickers in recorded stream depth in the forum Monitor My Watershed 2 months, 2 weeks ago

  Thanks. Temperature coefficients, compensations – that’s interesting. I have the sensor sitting in a bucket of stream water right now – should see more rapid changes in temperature. I’ve a note into the METER Co.
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  neilh20 replied to the topic Artifactual troughs and flickers in recorded stream depth in the forum Monitor My Watershed 2 months, 2 weeks ago

  I did some blog posts in 2016 with a number of depth sensors that quoted an error for a very wide temperature compensation. They where the Insitu LT500 (best), Keller Nanolevel, Keller Acculevel, Keller Level gage (worst).

  I setup a situation with the depth sensors in a jar of water (low depth)  with a good solar aspect to test how well they met…[Read more]
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  neilh20 replied to the topic Artifactual troughs and flickers in recorded stream depth in the forum Monitor My Watershed 2 months, 2 weeks ago

  As you say from 2nd sept – something changed, after that it looks to me like its is triggered by the temperature changes. Its just a visual analysis, but also using the conductivity. With a rain event the conductivity also typically changes, and of course temperature can change.

  For daily diurnal cycle after sept 2 the temperature starts varying…[Read more]
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  D_Manning replied to the topic Artifactual troughs and flickers in recorded stream depth in the forum Monitor My Watershed 2 months, 2 weeks ago

  Sure. https://monitormywatershed.org/sites/VCRP1/

  Best way to view it is with time series visualization. Exclude interruption of pattern by a rain event and having the sensor out recently over a recorded reading.
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  neilh20 replied to the topic Artifactual troughs and flickers in recorded stream depth in the forum Monitor My Watershed 2 months, 2 weeks ago

  Just wondering if you could post a link to where the data is being collected, and look at it as a system.
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  Shannon Hicks replied to the topic Could not wake modem for clock sync in the forum Mayfly Data Logger 2 months, 2 weeks ago

  Can you email me the entire .ino sketch that you’re using with the board.
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  Shannon Hicks replied to the topic Buying new batteries + sim card problems in the forum Mayfly Data Logger 2 months, 2 weeks ago

  Everyone has been out of stock of that particular battery for the past 6 months.  As you said, you can use the Adafruit 6600mAh pack (https://www.digikey.com/en/products/detail/adafruit-industries-llc/353/5054549), or you can use the single-cell 2200mAh cell (https://www.digikey.com/en/products/detail/adafruit-industries-llc/1781/5054543).  As l…[Read more]
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  ltemplin became a registered member 2 months, 2 weeks ago

  

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  Elliot Ma replied to the topic Could not wake modem for clock sync in the forum Mayfly Data Logger 2 months, 2 weeks ago

  Hi,

  Thanks for the quick reply! I am not getting any red lights on the modem at all. I have the Mayfly plugged into my pc right now and the only lights are the orange charge light, the USB/POWER lights, and D8 is lit up as green right now.

  The modem seems to be correctly seated according to the instructions. We previously were able to get this…[Read more]
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  Sara Damiano replied to the topic Could not wake modem for clock sync in the forum Mayfly Data Logger 2 months, 2 weeks ago

  Does the red power light on the lower right of the modem turn on? If not, the modem isn’t getting power. Pin 18 should be the right pin number. I’m not sure why it wouldn’t be powering up. Have you ever messed with the solder jumpers?

  If the modem is powering up, you might have a baud rate problem. Try setting the modemBaud to 57600 even…[Read more]
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