Forum Activity – EnviroDIY

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neilh replied to the topic Battery Capacity /Fuel Gauge in the forum Mayfly Data Logger 4 days, 19 hours ago

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]
Matt Barney replied to the topic Battery Capacity /Fuel Gauge in the forum Mayfly Data Logger 4 days, 23 hours ago

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

Matt
Sara Damiano replied to the topic Stronger cell antenna? in the forum Mayfly Data Logger 5 days, 21 hours ago

@ckillen – That is awesome, and not too spendy either.
Cal replied to the topic Stronger cell antenna? in the forum Mayfly Data Logger 1 week ago

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]
Scott Ensign replied to the topic Sampling frequency for Monitor My Watershed in the forum Monitor My Watershed 1 week ago

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.
Dave Yake wrote a new post, Evaluating Maxbotix Ultrasonic Sensors for Monitoring Stream Base Flow 1 week, 3 days ago

Evaluation by the Save our Water, Watershed Hydrologic Analysis Team, Marion Waggoner and Dave Yake.

Background

Broad Run drains a 10 km2 watershed straddling southeastern Pennsylvania and northwest […]
- neilh replied 1 week, 2 days ago
  
  Thankyou so much for doing such detailed work. I’d been thinking of a boom situation for some measurements. However the atmospheric temperature will vary.
- James_NZ replied 1 week ago
  
  Great work guys. We are also interested in these sensors and have also been considering a boom-type setup.
  I think it might be worth getting one of these to see if it’s fit for our purpose.
neilh replied to the topic Sampling frequency for Monitor My Watershed in the forum Monitor My Watershed 1 week, 3 days ago

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]
neilh replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 1 week, 4 days ago

Continuing some ideas on https://www.envirodiy.org/topic/battery-capacity-fuel-gauge
neilh started the topic Battery Capacity /Fuel Gauge in the forum Mayfly Data Logger 1 week, 4 days ago

Just wondering if anybody has looked at algorithms for battery capacity.

For logging reliability, when a LiIon battery is low in available energy, it would be nice to reserve the available energy for just the core logging functions (ie no high powered radio transmission).

I mentioned some work I’m doing in this thread…[Read more]
Sara Damiano replied to the topic Mayfly Drivers May Not Have Auto Installed in the forum Mayfly Data Logger 1 week, 6 days ago

Yay!
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