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Sara Damiano replied to the topic Atlas Scientific Dissolved Oxygen Sensor Not Reading in the forum Environmental Sensors 1 years, 7 months ago
It’s been a long time since I played with the Atlas sensors, but from my notes, power cycling them can cause the whole logger to crash. If you want to power down Atlas sensors between readings, you need an I2C isolator. See the warning here: https://envirodiy.github.io/ModularSensors/group__atlas__group.html. The simple logging program should p…[Read more]
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Cal replied to the topic Trouble locating information on new LTEBee in the forum Mayfly Data Logger 1 years, 7 months ago
Thanks all for your replies and help. I didn’t know about the MTU and limiting my message buffer under 1500 will easily solve that problem. I’ve put recovery code in my sketch to gracefully power down and reset the modem if it ever gets into a non-responsive state. I’ll be installing several units (Mayfly 1.1 and Sim7080) this summer. Thanks again.
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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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Shannon Hicks replied to the topic Need Help with Clarivue10 Turbidity Sensors in the forum Environmental Sensors 1 years, 7 months ago
I spent the entire weekend trying to recreate the SDI-12 communication issue with the ClariVue sensors by placing a bunch of Mayfly loggers and turbidity sensors in my freezer and refrigerator in various combinations. I was able to isolate the problem to the Mayfly v1.1 boards not being able to produce sufficient instantaneous current at 12…[Read more]
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Shannon Hicks replied to the topic Trouble locating information on new LTEBee in the forum Mayfly Data Logger 1 years, 7 months ago
We’ve never had any hardware failures of our sim7080 module in the field when using the sketch mentioned above. With hundreds of them deployed in the past 18 months, the only problem we occasionally see (one or two stations a month) is where they stop responding to the Mayfly board and kind of “lock up” and need to be reset. This is usually a…[Read more]
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Michael Daniel replied to the topic Need Help with Clarivue10 Turbidity Sensors in the forum Environmental Sensors 1 years, 7 months ago
The Mayfly is at least v1.1, but I’m unsure what revision it is. Would it say RevB on the board somewhere?
Also, I should’ve mentioned earlier that I’ve tried to run the address change program when the turbidity sensor wasn’t working and the program couldn’t find the sensor at all, regardless of the amount of times I let it loop through the…[Read more]
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Sara Damiano replied to the topic Trouble locating information on new LTEBee in the forum Mayfly Data Logger 1 years, 7 months ago
The maximum transmission unit (MTU) for TCP is 1500 bytes. That’s why your transmissions over that size are failing. The commands TinyGSM uses for the SIM7080G are too low-level to break it up; you’ll need to do that yourself or submit a PR for TinyGSM. The XBee commands are higher level; it does the break-up for you.
My first guess for the…[Read more]
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Shannon Hicks replied to the topic Atlas Scientific Dissolved Oxygen Sensor Not Reading in the forum Environmental Sensors 1 years, 7 months ago
Most I2C devices don’t like having the power to the device cut and the reapplied, which is why the Vcc pin of the Mayfly’s I2C Grove jack is constantly powered. All the other Grove jacks switch the power on or off, but the I2C jack always has 3.3v, even with the Mayfly is asleep. So if you’re powering your Atlas board from any of the switched s…[Read more]
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Shannon Hicks replied to the topic Trouble locating information on new LTEBee in the forum Mayfly Data Logger 1 years, 7 months ago
I think @srgdamiano should be able to help, since she has the best understanding of the libraries and commands used with the sim7080.
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Cal replied to the topic Trouble locating information on new LTEBee in the forum Mayfly Data Logger 1 years, 7 months ago
I’ve had 2 problems with the SIM7080G modem on the Mayfly 1.x board. I wonder if anybody else has had the same problems or has any information that would help me.
My code is uses the TinyGsm library, and some parts of the ModularSensors code but is otherwise custom code. The code has been working in the field with Mayfly 0.5 and Digi LT…[Read more]
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James T replied to the topic Atlas Scientific Dissolved Oxygen Sensor Not Reading in the forum Environmental Sensors 1 years, 7 months ago
I have tried various configurations. I have connected it to the I2C Grove slot, and I have connected it to the SDA & SCL pins. As for the power, I have gotten power through the Grove connector, and I have tried giving it power through each of the 3.3v and gnd pins. It performs the same regardless of how I have it connected.
I am using the…[Read more]
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Shannon Hicks replied to the topic Atlas Scientific Dissolved Oxygen Sensor Not Reading in the forum Environmental Sensors 1 years, 7 months ago
How are you connecting the sensor to the Mayfly (what pins for data and power and what jack), and are you putting the Mayfly to sleep between readings? Is the sensor being powered constantly or are you switching off the power to the sensor between readings?
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RogerS replied to the topic 900 Mhz Point to point and cellular connection. in the forum Mayfly Data Logger 1 years, 7 months ago
I am hoping that we can use AT&T or Verizon cellular. That will make things simpler(maybe). But it’s nice to get a toolbox of useable solutions if they are needed.
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James T replied to the topic Atlas Scientific Dissolved Oxygen Sensor Not Reading in the forum Environmental Sensors 1 years, 7 months ago
<div>
<div>/**</div>
<div> * @file AtlasScientificDO.h</div>
<div> * @copyright 2017-2022 Stroud Water Research Center</div>
<div> * Part of the EnviroDIY ModularSensors library for Arduino</div>
<div> * @author Initial developement for Atlas Sensors was done by Adam Gold</div>
<div> * Files were edited by Sara Damiano <…[Read more] -
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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James T started the topic Atlas Scientific Dissolved Oxygen Sensor Not Reading in the forum Environmental Sensors 1 years, 7 months ago
I am working on programming a Mayfly Data Logger v1.1. I am using the Simple_Logging program in Visual Studio and the PlatformIO. I am attempting to connect an Atlas Scientific DO sensor to the logger using I2C. I already have an Atlas Scientific pH sensor connected to the Mayfly, and the pH sensor is working fine. The DO sensor is not. It will…[Read more]
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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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RogerS started the topic 900 Mhz Point to point and cellular connection. in the forum Mayfly Data Logger 1 years, 7 months ago
We have a deep canyon location that may or may not have cellular data coverage for real time data transfer to MMW site. I am wondering if anyone has done a 900MHZ radio with a Mayfly data logger point to point (bottom of canyon to top of a canyon) and then connected to a cellular network for almost real time data uploads? We will have a line of…[Read more]
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Laura DeCicco started the topic Secure Connection SSL help in the forum Mayfly Data Logger 1 years, 7 months ago
I was trying to set up a secure connection to our AWS IoT server by using this example:
https://aws.amazon.com/blogs/compute/building-an-aws-iot-core-device-using-aws-serverless-and-an-esp32/The first big difference is that I’m using the SIMComSIM7080 code (ie starting from DRWI_SIM7080LTE.ino) to connect to the internet instead of a general…[Read more]
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Laura DeCicco replied to the topic platformio.ini help in the forum Mayfly Data Logger 1 years, 7 months ago
Thanks @neilh20, I think I needed to run
pio pkg install
. Now that I have done that – the libraries do indeed clone then install automatically when I update the .ini file.I’m still not sure I fully appreciate the power of the .ini file and pio commands…but that will come with time I guess.
Git is a critical part of my daily work-life, and…[Read more]
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