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James P replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 4 weeks 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 10 months, 4 weeks 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 11 months ago
<p class=”user-nicename”>@srgdamiano do you by chance see where I am going wrong?</p>
WAEngineering became a registered member 11 months ago
WAEngineering
@woodward_academy_engineering
Don Y became a registered member 11 months ago
Don Y
@donyjunk
Soil Sensor Student replied to the topic Alphasense CO2, Power Issues in the forum Environmental Sensors 11 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]
Shannon Hicks replied to the topic Alphasense CO2, Power Issues in the forum Environmental Sensors 11 months ago
What version of the Mayfly board are you using? And how are you powering the Mayfly? Is the Mayfly providing the power for the sensor and vacuum pump too, or is that from a different source?
Soil Sensor Student started the topic Alphasense CO2, Power Issues in the forum Environmental Sensors 11 months ago
Hello,
I am part of a team of Student Engineers from Minnesota State University creating a Sensor to measure CO2 concentrations in sub-surface soils. Check out the GitHub – https://github.com/bellahenkel/Soil-Sensing-Device this was created by Last semesters wonderful team.
We are using the Alphasense IRC-a1 CO2 sensor with NDIR CO2 transmitter…[Read more]
Soil Sensor Student became a registered member 11 months ago
Soil Sensor Student
@soilsensorstudent
Schaeppi became a registered member 11 months ago
Schaeppi
@schaeppi