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Hi Matt – well been watching the output of the LC709203F with some other testing. It does work for the accurate battery voltage measurement.

However the LC709203F “%” capacity  could be challenging to use.  There is a lot of technical discussion about battery fuel gauges and what works and doesn’t.  Another device that I got was the Seeed LT…[Read more]

Interesting -thanks Neil. I may try that fuel gauge as well.

Matt

@ckillen – That is awesome, and not too spendy either.

We just had an experience with antennae that might interest others.  We have a dozen sensor stations in the field measuring water level of lakes in north western Michigan.  Each station has an SDI-12 water level sensor connected to a Mayfly with a Digi XBee3 Cellular LTE-M/NB-IoT modem using a $3.00 antenna from Adafruit  …[Read more]

Thanks, Neil. That’s helpful to know that ThingSpeak via Modular Sensors might be a better option for this user’s purposes. He has an interesting classroom laboratory application that I’ll encourage him to share if he is able to pilot it at his college.

My experience is that its not capable of that.

I have been doing a lot of testing in pushing up readings to test Mayfly reliable data delivery algorithms I have evolved.  I have in some cases had 6000 points to push (ie 60days of unreported readings at 15minutes per reading), and MMW has been very slow, often after a small number (~10) of POSTs…[Read more]

Continuing some ideas on https://www.envirodiy.org/topic/battery-capacity-fuel-gauge

Yay!

It would be interesting to see if the anomalies in sync with periods when the Mayfly’s battery voltage is peaking, i.e., during maximum solar input.

It sounds like you have the sensor on a separate circuit from the Mayfly. If that’s the case, should the grounds tied together between these two circuits? I’m not an electrical engineer, so I don’t…[Read more]

Those temperature shouldn’t be a problem.  If I remember right, one of our first box iterations ended up acting like a little greenhouse and turning into an oven in the summer.

Could it be the amp-to-volt board that’s the problem instead of the sensor?  Do you have a second one you could test against?

Success!!! Thank you so much!!

Hi all,

Yes we are using the ADS1115.  The board temperature (DS3231) in the box is plotted in yellow below.

James

The install guide for windows 10 is here:  https://www.ftdichip.com/Support/Documents/InstallGuides/AN_396%20FTDI%20Drivers%20Installation%20Guide%20for%20Windows%2010.pdf  Look at section 3.3 starting on page 9.

Remember that you need to be a computer administrator.  If you’re using a school/work laptop that you don’t have admin privileges fo…[Read more]

You absolutely must have administrative privileges to install drivers on Windows.  If you don’t, it might be the reason they failed to install with the Arduino program.

The “setup executable” linked in the comment column is probably the easiest way to install the drivers.  There is also a link to an installation guide there.  I’ve added sc…[Read more]

Thanks Sara! I clicked on the link you provided but…… I’m lost. I have no experience with this level of computer technology. Once I get to the page there are many links on the page. Three at the top of the page are VCP, D2XX, and D3XX. Do I download one of these to the Arduino software someplace? Sorry, I’m just not that computer…[Read more]

The drivers are available here:  https://www.ftdichip.com/Drivers/VCP.htm