Shannon Hicks

@shicks Its working now. Thank you. But the issue is with the b_address_change sketch. This is the output.

13:12:30.112 -> ��fx������~�����x�f~������怘�f�f�f�f~~�ffx����憆���������f�~fxf���~����fx�������~f��x��������怘��f����f���~��x��fx�����������f~f�fx怘�������ff���ff��fx��xx��fx������x���fx�������~��xfx��~��x��fx���怘�f��fx�f�~��x��fx����怘

@shicks When I connect the tip-power, ring-ground, and sleeve-data Arduino IDE can’t read my port & the light on the Arduino Mega stops. What’s the reason? This is the output its giving me ”
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12:06:33.721 -> Timeout value: 

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12:06:33.721 -> -9999

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12:06:33.721 -> Powering up sensors,…

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@shicks I had a doubt related to the baud rate mentioned in the example sketches which is “115200” but for SDI-12 configuration of TEROS 12 its “1200”. Should I change it? Also if I change the address of the sensor will I be able to obtain data from the data logger provided by METER or do I have to set it to “0” each & every time I have to access…[Read more]

@shicks For now I want to connect one Teros 12 but in future want to connect four. Also I have both Mega & Nano with me. The output is an audio jack for which I have bought a trs 3.5mm breakout board. I just want to display the sensor data on my computer & use a esp module to display it on some website for future purposes

@shicks I’m also going to be adding an air temperature sensor that has a 12-volt fan in the radiation shield. The fan can run at lower power by using pulse width modulation. I’m wondering if there might be a way to accomplish this with the power relay, since the fan will have to be connected directly to the battery like the heaters on my other…[Read more]

@shicks I wanted to run by what my thought process is with these relays and some of the questions I have now that I have purchased a few. I think my questions are general enough that you should be able to help me with them. I am looking to connect the Seeed relay to the D10-D11 grove terminal on the Mayfly. This would connect the relay’s SIG pin…[Read more]

Yes, the Stroud Center has a Campbell Scientific phycocyanin sensor deployed on a Mayfly Data Logger. @shicks might be able to share code with you.

@shicks this is something I am still struggling with, and I am having hard time figuring out. I’ve added some pictures with some of the data I’ve been collecting. It seems that the logger is picking up that there is some diurnal cycle happening, but the values seem to not match what I would expect, or they can be wildly all over the place. If I…[Read more]

@shicks surely the issue isn’t how long it lasts – it will always run  out of power at some point, or even worse batteries loose capacity, what was working decays – the issue is how to reliably recover when it has run out of available mA.  ?

The reliable bit – as in all engineering – is to add a buffer for real world component variations and t…[Read more]

@shicks I agree it would be good to see the software. For my systems I look to have it last 14days before it reaches 3.8V and it is a difficult target unless its being tested for and the time taken on the radio is also characterized.

I see the issue is how to keep the sensor readings delivered reliably while there is enough power, and then when…[Read more]

Great idea! Thanks @shicks!

Hi @shicks, just received two Mayfly 1.1 and noticed they are rev1.1B – just wondering what the differences are from  rev1.1A? 🙂

I did pull the circuit diagram from https://www.envirodiy.org/mayfly/hardware/ however the resolution is so low, its not all readable. Just wondering if there is a pdf version. 🙂

I also checked…[Read more]

Awesome. The XBee module is an RF module, the XBee Pro S3B. I just remembered, while the apogee sensors I am using don’t require power to make measurements, they do require power for the internal heater. The pyrgeometer heaters, according to the datasheet, draw 15.4 mA and 185 mW at 12 VDC. The pyranometers draw 30.8 mA and 370s mW at 12 VDC. In…[Read more]

I think I found the answer by emailing support@rexV, since I got it from amazon.com Mar.2022 it wasn’t certified for Verizon.

This can be checked https://opendevelopment.verizonwireless.com/activation-troubleshooting

support@RexV said “RevX does not certify devices for use on M2M/IoT rate plans, rather the manufacturer registers the IMEI with…[Read more]

Hi Shannon (@shicks),

Thanks for your reply, and apologies for not replying sooner.  My replies to your message are in bold:

1. Do you have one of the Meter ZSC bluetooth interfaces for setting and checking Meter Group sensors? They’re really handy testing and troubleshooting things like their CTD sensors, and for changing the SDI12 address.  – <…

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Hi @shicks and @srgdamiano.  You’re not going to believe it but the addition of the build flag below has fixed my problem, at least for the Gen2 sensors.

-D MS_SDI12_NON_CONCURRENT

I am certain it is this build flag and not the voltage pin (previously set to 5v) because I uploaded my script prior to switching the voltage pin over and it su…[Read more]

@shicks, would you mind publishing your Y-511a +  Gen 2 Hydros21 CTD code so I can ensure I haven’t done anything wrong on that front?

Thanks in advance.

James