Check out the EnviroDIY Mayfly Data Logger, a powerful user-programmable microprocessor board that is fully compatible with Arduino IDE software.
Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, a web toolkit designed to help citizens, conservation practitioners, municipal decision-makers, researchers, educators, and students advance knowledge and stewardship of fresh water. New to EnviroDIY? Start here
For sketches, libraries, and documentation, visit our EnviroDIY GitHub repository.
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EnviroDIY is part of the WikiWatershed.org toolkit
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Shannon Hicks replied to the topic Innacurate LiPo battery voltage data in the forum Mayfly Data Logger 1 day, 5 hours ago
Thanks for the additional information, I appreciate you helping us out with this. I’ll send you a PM about what to do next.
Steve Ochs replied to the topic Innacurate LiPo battery voltage data in the forum Mayfly Data Logger 1 day, 8 hours ago
I had the board powered with the 2500 mah LiPo battery and a 2w Voltaic solar panel and I was monitoring battery life when I saw the sudden drop in voltage.
I am using a XBEE S6B wifi module for telemetery.
Current draw on the battery is between 100ma and 120ma when reading sensors and transmitting
Current draw is not measurable when…[Read more]
Shannon Hicks replied to the topic Sleep code not working with Maxbotix 7389 in the forum Mayfly Data Logger 1 day, 17 hours ago
Sara is probably the best one to comment on the code aspect of your question, but hardware-wise, you might want to try a different pair of pins for connecting the sensor. D19 is used as the status pin of the Xbee socket, and is used in all of the code examples we use for radio, wifi, and cellular telemetry. D18 is kind of reserved for being used…[Read more]
Shannon Hicks replied to the topic Innacurate LiPo battery voltage data in the forum Mayfly Data Logger 1 day, 17 hours ago
Yes, this is a known issue that I’ve seen with only a very few boards recently where we see those exact same incorrect voltage readings around the Q1 mosfet. I haven’t tried replacing parts to see whether it’s the mosfet or the D3 diode, but it’s definitely either one of those, or possibly both of them. I’ll see if I can experiment with some bad…[Read more]
Steve Ochs started the topic Innacurate LiPo battery voltage data in the forum Mayfly Data Logger 1 day, 20 hours ago
This will probably be a question for Shannon since it is hardware related but I have a Mayfly 0.5b I purchased earlier this year and it started sending data showing a low LiPo battery voltage (3.4v instead of 3.9v). This board has only been used for software development but I was getting ready to deploy it.
I verified the battery is indeed…[Read more]
Marion started the topic Sleep code not working with Maxbotix 7389 in the forum Mayfly Data Logger 2 days ago
We have a project which requires only reading a Maxbotix 7389 and using the result to trigger taking a water sample.
With cold weather we have started getting bad (300 mm) data values sometimes. We were using pin 18 to supply the Maxbotix power and pin 19 to read. Sleep code worked fine. But, we would like to test supplying power to sensor…[Read more]
Shannon Hicks replied to the topic microSD card adapter board in the forum Mayfly Data Logger 2 days, 1 hour ago
We’ve completely run out of them because of all the requests for starter kits lately, plus our own flurry of logger assembly and deployment this fall, but as soon as we get more in stock we will be listing them for sale on Amazon as a separate item by themselves.