All content on EnviroDIY is licensed as Creative Commons Attribution-ShareAlike 4.0. Hardware designs on EnviroDIY are released under the CERN Open Hardware License 1.2. Alternative licenses are available. Learn more
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
Community Activity See all activity
Jim Moore replied to the topic Errors compiling DRWI_SIM7080LTE.ino code in the forum Mayfly Data Logger 22 minutes ago
@srgdamiano @hicks
Current status of my problem; I am using the 0.5 Mayfly board and have changed to appropite line from 18 to -1 and I get compile errors related to NeosWSerial.ccp. I have updated all my libraries and still get the same error.
If I comment out the lib entry for NeoSWSerial the sketch compiles but when loaded the console…[Read more]
Shannon Hicks replied to the topic Keller CTD Sensor in the forum Environmental Sensors 1 day ago
We haven’t used that sensor at Stroud, but after looking at the spec sheet, I don’t see why it wouldn’t work with one of our newer Mayfly models that generates 12v. You’ll need a Modbus interface if you want to use that protocol, so either building your own or using the one we’ll be releasing soon. For SDI-12, it should work directly connected t…[Read more]
dan@wachusett started the topic Keller CTD Sensor in the forum Environmental Sensors 1 day ago
I am looking for some feedback from the EnviroDIY community on a new sensor to try with the Mayfly — Keller – Series 36XiW-CTD (Conductivity, Temperature, Depth). I have attached the spec sheet from Keller.
[Read more]
neilh replied to the topic Mayfly I2C Address in the forum Mayfly Data Logger 1 day, 14 hours ago
@zeke-holloman communications – peer2peer – is a deep subject.
Many years ago I wrote the code for a comms stack to use the 9bit UART to poll an array of processors. In the end it was 2people for 18months to get it working reliably. So its not trivial, but i had a fantastic time with…[Read more]
Shannon Hicks replied to the topic Mayfly I2C Address in the forum Mayfly Data Logger 1 day, 16 hours ago
The Mayfly board is not a I2C slave device so it does not have an I2C address. The easiest way to transfer data between Mayfly boards would be to use UART like serial or NewSoftSerial.
Zeke Holloman started the topic Mayfly I2C Address in the forum Mayfly Data Logger 1 day, 16 hours ago
@srgdamiano @shicks @neilh20
Hi there! Does the Mayfly have an I2C address associated with it? I’m trying to use Wire.h to transmit data between two Mayflys. If it does, where could I find it, for both the 0.5b and the 1.0. Thank you!
neilh started the topic Mayfly 1.0 Qu in the forum Mayfly Data Logger 1 day, 16 hours ago
@shicks just wondering what the expected standard charge is for the Mayfly 1.0
I’m seeing via a USB Meter that with a USB-C charger that delivers 5.0V (and 2A capable) with a 4.4A LiIon battery at 3.8V that it is only charged 0.13-0.2A. Previously Mayfly 0.5 this was the expected 0.5A
Digging deeper into the BQ24074
“Input-based dynamic po…[Read more]
Amanda Weigand became a registered member 1 day, 23 hours ago
Amanda Weigand
@amandaweigand
Greg Cutrell replied to the topic Monitoring Buoy on Reservoir/Lake in the forum Infrastructure and Equipment 2 days ago
If your only interested in a month of data and not concerned about a long-term deployment, I would just put the Mayfly/hardware/batteries in a nice IP 67 or 68 enclosure with a voltaic solar panel and strap it to a something like a spare buoy. The picture attached isn’t pretty but would probably work for long-term deployment in small inland lakes.
AlexRunde became a registered member 2 days, 1 hour ago
AlexRunde
@alexrunde