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Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, an initiative of Stroud Water Research Center designed to help people advance knowledge and stewardship of fresh water. 
Community Activity See all activity
Noori Nagra started the topic Could not wake modem for clock sync. in the forum Mayfly Data Logger 2 years, 6 months ago
Hello,
I have spent the past week trying to fix my code to wake up the modem, but I have not been able to fix it. Every time I run the code, I get this: Could not wake modem for clock sync. Meaning, I am getting data from the sensors, but instead of being able to send it to Monitor my Watershed, it saves as a file on an SD card. I would be very…[Read more]
neilh20 wrote a new post 2 years, 6 months ago
N Ca Mayflys through the winter storms
Following on from the phased deployment envirodiy.org/mayflys-in-coastal-redwoods-northern-california I’m pleased the way my fork of Mo […]
David Pascoal became a registered member 2 years, 7 months ago
David Pascoal
@dspsystem00
igul became a registered member 2 years, 7 months ago
igul
@igul
James P replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 2 years, 7 months ago
Turns out, it was the micro sd cards. We had two units with Sandisk Ultra 32gb cards, and two with different cards. One was a Sandisk “industrial” 8gb card, I forget the other one but it was an older 4gb card. The Sandisk 32gb cards use far more power — there is some info online but I don’t fully understand it. What I know is the Sandisk…[Read more]
Shannon Hicks replied to the topic Alphasense CO2, Power Issues in the forum Environmental Sensors 2 years, 7 months ago
I found a schematic in your github repo, my suggestion would be to power everything external to the Mayfly with its own beefy power source, especially the relay bank. It looks like you’re currently using the main 3.3v regulator of the Mayfly to power the relays and maybe some other things, which is probably what’s causing the brownout. There’s a…[Read more]
Braedon replied to the topic Programming and troubleshooting Apogee SP-710 sensor in the forum Environmental Sensors 2 years, 7 months ago
<p class=”user-nicename”>@srgdamiano do you by chance see where I am going wrong?</p>
WAEngineering became a registered member 2 years, 7 months ago
WAEngineering
@woodward_academy_engineering
Don Y became a registered member 2 years, 7 months ago
Don Y
@donyjunk
Soil Sensor Student replied to the topic Alphasense CO2, Power Issues in the forum Environmental Sensors 2 years, 7 months ago
Hello Shannon,
We are using version 1.0. The whole system is powered using a Voltaic brand 12volt battery. The voltage is stepped down via a DC-DC converter to power the Mayfly. The pump is powered by the battery and is switched on/off with a relay bank which is controlled by the Mayfly. The CO2 sensor is also powered by the battery, as it…[Read more]