Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of 
@aufdenkampe
active 1 day, 20 hours ago-
Anthony Aufdenkampe replied to the topic Minor Glitch Reading Maxbotix MB7389 with Mayfly in the forum Mayfly Data Logger 1 day, 20 hours ago
Kevin and David, thanks for posting these issues with the MaxSonar. David, thanks also for the photos!
I’ve also had funkiness with my Maxbotix deployments this summer when using the EnviroDIY ModularSensors library. For me it just seemed like it was repeating the last values.
David, thanks for showing everyone that quick fix and for helping me…[Read more]
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Anthony Aufdenkampe commented on the post, EnviroDIY Mayfly logger stations deployed in PA, DE and MN! 3 weeks, 4 days ago
Beth, thanks for sending Walter the links to the sensor description in the Modular Sensors library ReadMe file! That is a great resource.
One important correction, the Campbell Sci. OBS3+ sensor is an ANALOG sensor, and therefore should be connected to one of the Aux Analog grove ports on the Mayfly’s lower left side. The Auxiliary…[Read more]
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Anthony Aufdenkampe replied to the topic Modify SW5V boost to 12V in the forum Mayfly Data Logger 4 months, 2 weeks ago
@neilh, thanks for all of these tips. I’m just now diving back into all this, and actually need to make a lot of progress in the next 10 days.
I decided to still go with the Acculevel, because I needed the extra depth range.
Do you have any working Arduino code for the Acculevel? or even the nanolever. It would be a great place to start. My goal…[Read more]
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Anthony Aufdenkampe replied to the topic Modify SW5V boost to 12V in the forum Mayfly Data Logger 6 months, 2 weeks ago
Sara has done some great coding work with her SensorModbusMaster library, primarily in support our use of the high quality and inexpensive sensors from YosemiTech. We’ve developed a specific library for all YosemiTech sensors, which makes accessing all of the power functions quite easy: https://github.com/EnviroDIY/YosemitechModbus. All of this…[Read more]
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Anthony Aufdenkampe replied to the topic Recording data from pressure sensors on an SD card in the forum Mayfly Data Logger 1 year, 3 months ago
MillerG, can you paste in the error codes you get with your first sketch?
Also, I reformatted your first sketch so that it would render better, but I’m slightly worried that I may have messed something up when I did it. Can you confirm that the first sketch is correctly rendered? Thanks! -
Anthony Aufdenkampe replied to the topic Recording data from pressure sensors on an SD card in the forum Mayfly Data Logger 1 year, 3 months ago
MillerG, can you paste in the error codes you get with your first sketch?
Also, I reformatted your first sketch so that it would render better, but I’m slightly worried that I may have messed something up when I did it. Can you confirm that the first sketch is correctly rendered? Thanks! -
Anthony Aufdenkampe replied to the topic Powering V0.5 with >12V in the forum Mayfly Data Logger 1 year, 3 months ago
DaveE, No problem! The circuitry is designed for 12V batteries and can handle up to 15V or so to accommodate for a fully charged lead-acid batter. We just didn’t want anyone to daisy-chain a pile of other batter types much beyond 12V, which is why we listed 12V.
We hope to be providing full documentation on the new v.5 Mayfly boards soon! -
Anthony Aufdenkampe replied to the topic Recording data from pressure sensors on an SD card in the forum Mayfly Data Logger 1 year, 3 months ago
MillerG, thanks for posting your question here!
In the meanwhile, have you successfully run the “Simple File Example” sketch? It’s here: https://envirodiy.org/mayfly/software/simple-file/; and also on GitHub here: https://github.com/EnviroDIY/EnviroDIY_Mayfly_Logger/tree/master/examples.
Last, if you are using an SD card that is larger than…[Read more]
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Anthony Aufdenkampe posted a new activity comment 1 year, 5 months ago
Coby, thanks for asking!
The EnviroDIY team (and especially @srgdamiano) has been working very hard on an easy-to-use Modular Sensors library that we are developing not just for the EnviroDIY Mayfly but also for other Arduino-compatible boards (but we haven’t tested any of those yet!). See https://github.com/EnviroDIY/ModularSensors.
We’ve d…[Read more] -
Anthony Aufdenkampe replied to the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Data Loggers 1 year, 5 months ago
Danny, thanks for all your work on implementing these slave-side additions to our Arduino SDI-12 library (https://github.com/EnviroDIY/Arduino-SDI-12)! We really appreciate your contributions!
As you mentioned, @srgdamiano has been very actively working on all of the Arduino libraries that our Mayfly depends on for communicating with…[Read more]
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Anthony Aufdenkampe replied to the topic Using PlatformIO with Mayfly in the forum Mayfly Data Logger 1 year, 5 months ago
I also had a very positive support experience with the people from PlatformIO, and have really enjoyed using it in the last few days.
I had issues with PlatformIO IDE installing because the way I installed Anaconda Python installation had modified the way virtual environments are accessed (which PlatformIO needs to run). After posting an…[Read more]
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Anthony Aufdenkampe replied to the topic Optical dissolved oxygen solutions? in the forum Environmental Sensors 1 year, 6 months ago
Thomas,
The YosemiTech are a great deal and are very well made (https://www.yosemitech.com/en/product-cat-2.html). At the Stroud Water Research Center, we ordered one each of conductivity, turbidity and DO to test them out over the summer. When connected to a computer, they worked great.
However, we unfortunately haven’t had the time to work…[Read more]
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Anthony Aufdenkampe joined the group
Sensor Developers 1 year, 7 months ago -
Anthony Aufdenkampe started the topic Dying battery in winter solved by 3.5 W solar panel in the forum EnviroDIY Mayfly Data Logger 1 year, 7 months ago
Some early adopters of our wireless sensor stations, such as those shown in our post: EnviroDIY Mayfly logger stations deployed in PA, DE and MN!, have seen their battery voltage plummet and systems go offline over periods doing the winter. One assumption is that the cold temperatures caused the problem, but the Mayfly board is good to -40C and…[Read more]
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Anthony Aufdenkampe commented on the post, EnviroDIY Mayfly logger stations deployed in PA, DE and MN! 1 year, 7 months ago
We’re working on getting an example sketch for the stations shown in this post, using the GPRSbee cell phone wireless ratio. We’re also working on getting as much code as possible in our EnviroDIY GitHub code repository for the Mayfly: https://github.com/EnviroDIY/EnviroDIY_Mayfly_Logger
Stay tuned! -
Anthony Aufdenkampe‘s profile was updated 1 year, 7 months ago
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Anthony Aufdenkampe wrote a new post, EnviroDIY Mayfly logger stations deployed in PA, DE and MN! 1 year, 8 months ago
In the summer of 2016, Shannon Hicks and other Stroud Water Research Center (SWRC) staff kept busy deploying dozens of sensor stations based on our new EnviroDIY Mayfly Data Logger. Most recently, we collaborated […]
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Very nice project!
Do you have an exemple code with the GPRSbee. I use GPRSbee rev6b + stalker V3.1 but I have some problem with the gprsbee.init.
Thank you,
Eric-
We’re working on getting an example sketch for the stations shown in this post, using the GPRSbee cell phone wireless ratio. We’re also working on getting as much code as possible in our EnviroDIY GitHub code repository for the Mayfly: https://github.com/EnviroDIY/EnviroDIY_Mayfly_Logger
Stay tuned! -
This might be helpful: https://forum.sodaq.com/t/gprsbee-library/471
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Dear Anthony, congratulations. Based on the pictures, I have following practical questions:
1) What solar panel are you using? The solar panel that comes with the Mayfly is much smaller.
2) Is it acustic material that you use to fill up the space in the box? Has it any other function?With friendly greetings,
Arnoud
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The solar panels in the photos above are made by a company called Voltaic Systems (https://www.voltaicsystems.com/solar-panels). They have a variety of sizes, we prefer the 2W for sunny areas, and 3.5W for shady areas. T he small 0.5w panel that comes with the Mayfly starter kit is not waterproof, but it’s handy if you want to build a small logger and put the panel inside the clear lid of the small Mayfly enclosure.
The Pelican cases we use for our loggers come with foam already inside them, so you simply cut away part of the foam to create spaces for the logger, battery, cables, etc.
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That looks very nice. Did you have any ESD-problems with that foam and those cases? I’ve tried to use some fake pelican boxes (made of PE plastic I belive) as enclosures for electronics and had huge problems; as soon as I came close to the box the electronics went crazy.
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No, I haven’t had any problems with the foam or the cases. In fact, in some of the loggers in locations with a strong cellular signal, I skip the external antenna for the GPRS module and simply use a small PCB antenna and simply tuck that antenna between the small Mayfly enclosure and the foam.
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HI, do you have a diagram or wiring map so I can understand how to connect the OBS sensor to the mayfly data logger please?
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I haven’t deployed an OBS, but it looks like it goes into the I2C port using the instructions at:
https://github.com/EnviroDIY/ModularSensors#campbell-scientific-obs-3
where it says that, “The power supply is connected to the red wire, low range output comes from the blue wire, high range output comes from the white wire, and the black, green, and silver/unshielded wires should all be connected to ground.”-
Beth, thanks for sending Walter the links to the sensor description in the Modular Sensors library ReadMe file! That is a great resource.
One important correction, the Campbell Sci. OBS3+ sensor is an ANALOG sensor, and therefore should be connected to one of the Aux Analog grove ports on the Mayfly’s lower left side. The Auxiliary Analog-to-Digital Converter (ADC) chip is, however, an I2C device, which is why the description mentions I2C.
Walter, if you read that ModularSensors sensor description carefully, you’ll also see that the OBS3+ works better with 5V of power, so you should move the power jumper on the Mayfly for the Aux Analog from switched 3.3V to switched 5V.
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Thanks a lot Anthony / Fisherba, I will work on the MayFly and the OBS on the weekend!.
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Hi fisherba, thanks a lot for the help, as soon I arrive to my office will work on it. I will like to ask you if you had work with any turbidity sensor in special?, I’m looking to deploy at last 14 of those sensor spread out in fresh water tanks.
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Hi @walterartavia02gmail-com, I completely missed this turbidity question. We have used Yosimetech (https://www.yosemitech.com/en/) turbidity sensors, but there’s enough hassle in ordering (customs hang-ups every time) and creating a RS-485 shield to communicate with those, that going with the Campbell sensor might be in my future.
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Anthony Aufdenkampe posted an update in the group
Researchers 2 years, 6 months agoAll members of this group can post to this group. Tell us what kind of research you are doing and why you joined EnviroDIY?
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I’ve tried to write up most of the steps here: https://envirodiy.org/topic/logging-mayfly-with-decagon-sdi-12-sensor/
Please let me know if that’s not enough to get you going.