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neilh20 replied to the topic Trouble locating information on new LTEBee in the forum Mayfly Data Logger 1 years, 7 months ago
@ckillen sorry to hear about the problems – I make the assumption that a sub-module can always lockup, and may need a hard reset/power cycle to bring it back. Internal modem software can only be as good as its tested, sub-modules comms software is complicated and its very difficult to test for all cases.
The Maylfy1.1 now supports a power off c…[Read more]
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neilh20 replied to the topic platformio.ini help in the forum Mayfly Data Logger 1 years, 7 months ago
Great @ldecicco – one are to note with “pio pkg install” is how it becomes part of your build process. I like to have a development build environment tree. Then a final “release” environment – and attempt to take a full snapshot of all libs used. I encapsulate the difference in text instructions and operation of the platformio.ini.
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neilh20 replied to the topic 900 Mhz Point to point and cellular connection. in the forum Mayfly Data Logger 1 years, 7 months ago
@rogers1313 interesting question, and I’ve been mulling over possible solutions as it seems very attractive.
The area undefined , is power, cost of the cellular gateway, and reliability of the connection.
Its possible to do the individual elements easily – 900Mhz point to point – and cellular – but then introduce a packet with the “readings i…[Read more]
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neilh20 replied to the topic platformio.ini help in the forum Mayfly Data Logger 1 years, 8 months ago
@ldecicco congrats on trying the platformio – it has a lot of professional capability, but like anything – getting in a fancy plane(!) there are lots of bells and whistles that can go off.
For “new” libs there are at least two ways to work with them, a) put the full path to them under libdeps
I find a…[Read more]
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neilh20 replied to the topic Modem Characterization in the forum Mayfly Data Logger 1 years, 8 months ago
The other side of failure is looking at how to design for system stability.
Some components may appear to fail, like modems. However the software of course needs to be robust enough to handle network conditions.
A way of thinking about it is the “7 Layer OSI stack” and transmission reliability is attributed to Network Layer, or layer 3 htt…[Read more]
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neilh20 replied to the topic 2022 EnviroDIY Hardware Status and Availability in the forum Mayfly Data Logger 1 years, 8 months ago
@sofija if you start a topic, perhaps describing what sensors you think you want, and some of the sensing goals, then it would be easier to provide some insights. My first board I used was from a Dutch company, the hardware availability isn’t a good place to discuss this. It could be in https://www.envirodiy.org/forum/infrastructure-and-equipment/
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neilh20 replied to the topic Grove 4 pin terminal board in the forum Mayfly Data Logger 1 years, 8 months ago
Hello Mary, gosh you may have to provide more detail of what you are thinking you are doing. The tipping bucket is typically a pulse count – it needs to translate the mechanical tipping bucket to an electronic pulse. So you may want to reference this in more detail.
There is this , never tried it . .. https://github.com/EnviroDIY/TippingBucketRainCounter
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neilh20 replied to the topic Yosemite library cant be found! in the forum Environmental Sensors 1 years, 8 months ago
Hi Cal, great to hear you’ve got your problem solved.
Believe me that is part of the process, learning how the libs go together. They can be amazing to pull in, – but its part of the programming paradigm of how to reference and track them.
Sometimes better to post a new thread when asking a question, and for programming its getting the focus…[Read more]
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neilh20 replied to the topic Yosemite library cant be found! in the forum Environmental Sensors 1 years, 8 months ago
Hi Cal, its good if you could include the compile errors, even perhaps as an attachment. In your current form you are making anybody wanting to help do a lot more work.
As you are posting in this old thread on Yosemite-library I’m guessing its something to do with that.
I had a similar problem with Yosemitech Lib described here-…[Read more]
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neilh20 started the topic Modem Characterization in the forum Mayfly Data Logger 1 years, 9 months ago
A few people seem to have mentioned modem failures. I’m wondering if people who have experienced modem failures could share what data they have on the the failures, part number, how they detected a failure, and how many months the devices where in the field.
I’m a hardware engineer, and when components start failing I look to pay attention to…[Read more]
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neilh20 replied to the topic Arduino NB-IoT for ISCO autosampler in the forum Infrastructure and Equipment 1 years, 9 months ago
While browsing something else, I came across this ISCO 3700 references – no idea if its workable
https://github.com/EnviroDIY/Trigger
https://github.com/EnviroDIY/Trigger/tree/master/hardware/ISCO-Mayfly-Trigger
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neilh20 replied to the topic Primary powering in cold settings in the forum Infrastructure and Equipment 1 years, 9 months ago
@khaase great to hear – do you have a pn for the cap – be interested see what the internal ESR is.
Seems to me a way to monitor the battery for maximum life is to read the voltage unloaded, and then again when it is loaded. The capacitor moderates the voltage reading, but still droops. So it would be how much droop (lack of charging from high i…[Read more]
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neilh20 replied to the topic SDI-12 Library in the forum Other Data Loggers 1 years, 9 months ago
@vogelrnws I had been looking at porting it to another processor and been using it and digging into the code. I’ve looked at some of the RP2040, but I’m cautious about its ability to go into low power – but haven’t looked at it in depth.
The SDI-12 lib uses a software based UART – running at 1200Baud, so 1200Baud is pretty slow and it does handle…[Read more]
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neilh20 replied to the topic Arduino NB-IoT for ISCO autosampler in the forum Infrastructure and Equipment 1 years, 10 months ago
@hannahlb if I understand you – you have 4 geographically distributed ISCO samplers (say more than 100m apart) and you would like to trigger them when a threshold is exceeded from a Solinst level sensor. The trigger would be communicated via messages on the telemetry NB-iot?
Probably the best way to think about it is in stages
1) figure if t…[Read more]
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neilh20 commented on the post, Open Data and Open Hardware: Tools for Collaborative Solutions to Water Challenges 1 years, 10 months ago
Gosh complex – it was great in the above all the linkages – reviews technically to my mind are features, and synergy in using them. Seems to me reviews can be on how to use (introducing to a new audience), tea […]
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neilh20 replied to the topic Primary powering in cold settings in the forum Infrastructure and Equipment 1 years, 10 months ago
@khaase interesting getting the LiSOCL2 activated.
My 2Cents is it would be good to characterize the 350mA pulse – and isolate it from the mega1284’s high impedance LiSOCL2. That could mean that for the “high impedance” (for a battery) LiSOCL2, the current draw has to be kept below a threshold, treated as a constant current source.…[Read more]
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neilh20 started the topic OSH – a discussion in the forum Mayfly Data Logger 1 years, 10 months ago
For electronics hardware – most people are used to shopping and then buying – simple transaction – however Open-Source Hardware at the board level can be different.
@ensign published https://www.envirodiy.org/tools-for-collaborative-solutions-to-water-challenges/
So, I’m interested in a discussion of how can OSH is used – Mayfly and other.…[Read more]
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neilh20 commented on the post, Open Data and Open Hardware: Tools for Collaborative Solutions to Water Challenges 1 years, 11 months ago
Great to have the overview and direction. The creators of Open Hardware do need support in understanding what it takes to design, manufacture and sell the hardware, and also the community to do it smartly – open […]
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neilh20 replied to the topic Temperature sensor severed by rodents? in the forum Miscellaneous 1 years, 11 months ago
Mostly the cables we put in are armored – 3/4″ flexible and can be joined easly – something like https://www.lowes.com/pd/HydroMaxx-3-4-in-x-50-ft-Black-Flexible-PVC-Pipe/1002884464
Also seen cables chewed by squirrels .
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neilh20 replied to the topic Mayfly 1.1 Bootloader Burning? in the forum Mayfly Data Logger 1 years, 11 months ago
Hi @khaase I haven’t figured out what the source of the reset is, as the AVR1284 Arduino code discards it – very frustrating.
I have used low ESR capacitors – something like Digikey 732-9079-1-ND CAP ALUM 680UF 20% 10V THRU HOLE LOW ESR
Whenever I have longer wires, a power switch, or current measurement, with the LiIon battery, I get some…[Read more]
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