@dan-wachusett
Active 4 days ago-
dan@wachusett replied to the topic LTEBee on Verizon? in the forum Mayfly Data Logger 2 weeks ago
@shicks, has anyone from Stroud contacted Verizon about this? I am also hitting a wall with adding the LTEBee modem to our Verizon account. The rep from Verizon that we work with is willing to speak with the device manufacturer to get them added to the Device Management Database. How do the LTEBee modems differ from the Digi modems such that…[Read more]
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dan@wachusett replied to the topic 2022 EnviroDIY Hardware Status and Availability in the forum Mayfly Data Logger 2 months, 4 weeks ago
Is there any updated timeline on the RS-485 half shield production? The last update was about 6 months ago.
Thanks!
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dan@wachusett replied to the topic Hydros 21 CTD sensor calibration question in the forum Environmental Sensors 4 months ago
<div class=”bbp-reply-author”>@rogers1313</div>
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<div>I have used the Hydros-21 for several years now and can add a bit to what Neil has mentioned. I also asked the engineers at Meter Group about temperature compensation and found their response unhelpful. My Hydros21 sensors output water depth that is highly affected by temperature (I…[Read more] -
dan@wachusett replied to the topic Keller CTD Sensor in the forum Environmental Sensors 10 months, 2 weeks ago
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]
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dan@wachusett replied to the topic Keller CTD Sensor in the forum Environmental Sensors 11 months, 3 weeks ago
Thanks for the advice Neil, I think you helped me figure out a path forward here. I have a stream with long-term monitoring data that I do not want to interrupt, so my inclination is to use a sensor that I know how to use (Hydros 21) and if budget/free time allows I would purchase the Keller CTD without being under any time constraints to get it…[Read more]
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dan@wachusett replied to the topic Keller CTD Sensor in the forum Environmental Sensors 11 months, 4 weeks ago
Thanks for the information everyone, I really appreciate it!
It sounds like RS485 is the way to go if I want to keep it simpler and use methods similar (hopefully) to the Acculevel 0r Nanolevel sensors. The RS485 interface only requires 3.2 V, so does this mean that no voltage booster/level shifter would be required?
The RS485 version would have…[Read more]
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dan@wachusett started the topic Keller CTD Sensor in the forum Environmental Sensors 1 year ago
I am looking for some feedback from the EnviroDIY community on a new sensor to try with the Mayfly — Keller – Series 36XiW-CTD (Conductivity, Temperature, Depth). I have attached the spec sheet from Keller.
- Would this sensor work with the Mayfly?… or maybe someone has already tried this sensor with the Mayfly? If so, could you share your…
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dan@wachusett replied to the topic Deep Cycle 12v Battery Recommendations in the forum Mayfly Data Logger 1 year ago
Thanks for your input Neil and Cal. I pulled my station from the field where the battery was not recharging so I could do some testing. I’ll report back with my testing results to see if anyone has any advice. I would still be interested in the 12 v battery option if anyone out there uses one successfully with their Mayfly board v 0.5.
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dan@wachusett started the topic Deep Cycle 12v Battery Recommendations in the forum Mayfly Data Logger 1 year ago
Can anyone recommend a good 12v deep cycle battery for use with the Mayfly 0.5 board. I have a station that gets very little sun and would like to be able to power it for long periods of time and swap out the battery a couple times a year. I did some looking around and the variation of specs and pricing made me unsure of which would be the most…[Read more]
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dan@wachusett started the topic Monitoring Buoy on Reservoir/Lake in the forum Infrastructure and Equipment 1 year ago
My agency is interested in developing a Mayfly based monitoring buoy for short-term deployment (days or weeks) on a reservoir. I figured I would reach out on the forum to see if anyone here has tried doing this and has any design tips/advice. Any photos, schematics, or parts lists would help enormously.
Thanks in advance!
Dan
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dan@wachusett commented on the post, The "Frankenlog" Network: A Forest Floor Ecohydrology Sensor Network Using the Mayfly Data Logger 1 year, 1 month ago
Very cool project David. I am wondering if you could share a list of hardware/electrical components that you used to power your Mayflies with marine batteries. I have one site that gets virtually no sun, so I am […]
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dan@wachusett replied to the topic Mayfly not writing to SD card = possibly a libraries issue? in the forum Mayfly Data Logger 1 year, 2 months ago
I am experiencing a similar issue that may be related, although without the RTC issue…
- Built with Modular sensors v0.30.0
- Data is saved to SD card when connected to computer via cable. RTC time is correct (or close enough)
- If I disconnect the board from the computer it fails to wake up or log any data to the SD card
- Battery voltage is…
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dan@wachusett replied to the topic Publish to AWS? in the forum Mayfly Data Logger 1 year, 5 months ago
@vogelrnws, thanks for the digi link… this does seem like something that could work very well to send information to AWS from a XBee modem. There are still several steps to figure out in terms of getting a Mayfly program to execute the python code that is on the modem, perhaps like calling a function?, with the sensor data as the message…[Read more]
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dan@wachusett replied to the topic Publish to AWS? in the forum Mayfly Data Logger 1 year, 5 months ago
@vogelrnws, We are using 4G LTE modems that are recommended by EnviroDIY with the LTE Bee Adapter. Verizon will send us SIM cards once we give them a list of IMEI numbers for the modems. Fortunately, our agency has access (with approval) for certain AWS storage/computing services, so I can take advantage of this since this project is relatively…[Read more]
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dan@wachusett replied to the topic Publish to AWS? in the forum Mayfly Data Logger 1 year, 5 months ago
Thanks for your input @neilh and @vogelrnws. I work for a state agency, so I have limited options when it comes to IT related endeavors, especially things that are new (like technology from the last 20 years). I am basically trying to follow pathways that have been lightly trodden, rather than attempt to blaze my own trail.
I am in the process…[Read more]
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dan@wachusett started the topic Publish to AWS? in the forum Mayfly Data Logger 1 year, 6 months ago
Hey EnviroDIY,
I am researching the use of AWS buckets as an alternative data endpoint for Mayfly logger output. Has anyone out there already tried doing this?
After some preliminary research it seems like that I would have to do the following steps:
- Create my AWS bucket
- Set up a new publisher script for logging to AWS as the endpoint
- Set…
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dan@wachusett started the topic MMW HTTP/GET Requests Possible? in the forum Monitor My Watershed 1 year, 6 months ago
Hello,
I am wondering if it is possible to pull data from MMW using HTTP GET requests. I’m guessing no, but I figured I would check here in case anyone knows if it is possible.
Thanks,
Dan
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dan@wachusett replied to the topic Hydros-21 Depth Temp Compensation in the forum Environmental Sensors 1 year, 7 months ago
Thanks Shannon, that is sound advice. We have 7 new Gen 2 Hydros-21 sensors and I will be delving in to this more later this summer. I do plan to test them in a controlled environment to make sure that the variation in output is within the accuracy range specified by the manufacturer.
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dan@wachusett replied to the topic Hydros-21 Depth Temp Compensation in the forum Environmental Sensors 1 year, 7 months ago
Thanks @fisherba… I will take a look at the updated sketch. It seems like this correction should be part of the device firmware, but perhaps it was modified at some point and not included. I may try to apply this correction to my previous data downloads and see if fixes the issue. If so, then will update the sketch on the mayfly to perform this…[Read more]
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