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, an initiative of Stroud Water Research Center designed to help people advance knowledge and stewardship of fresh water. New to EnviroDIY? Start here
Community Activity See all activity
Shannon Hicks replied to the topic Reading -9999 on all Sensors in the forum Mayfly Data Logger 21 hours, 37 minutes ago
Have you tried measuring the voltage being applied to the sensors by using a voltmeter when the channel scanning sketch is running? For the turbidity sensor’s screw terminal board, put the voltmeter’s red probe on either of the V+ screws, and the black probe on either of the GND screws. For the CTD sensor’s 3.5mm headphone jack adapter board p…[Read more]
WFUWater replied to the topic Reading -9999 on all Sensors in the forum Mayfly Data Logger 1 days ago
Hello, we’ve returned to try and set up the two sensors again but are still running into the issues of both being vacant at every location. We have tried both of them individually and have changed the 3.3v position to the 12v position for the Clarivue sensor. The Hydros is still connected to the 3.3v. We have also changed the sketch for the…[Read more]
neilh20 replied to the topic Artifactual troughs and flickers in recorded stream depth in the forum Monitor My Watershed 1 days, 18 hours ago
@d_manning just wondering if you have had any insights 🙂
Rachel Frantz became a registered member 5 days, 5 hours ago
Rachel Frantz
@rfrantz
Shannon Hicks replied to the topic Reading -9999 on all Sensors in the forum Mayfly Data Logger 5 days, 20 hours ago
In your 4th picture, it looks like the Grove cable plug may not fully be seated in the grove jack. Not sure about any of the other ones since the angles in the photos didn’t show them well, but be sure that it’s pressed all the way into the jack. And your second photo shows that your two SDI12 Grove jack voltage selection jumpers are both set t…[Read more]
WFUWater replied to the topic Reading -9999 on all Sensors in the forum Mayfly Data Logger 6 days, 23 hours ago
Here are a few pictures of our setup.
Shannon Hicks replied to the topic Reading -9999 on all Sensors in the forum Mayfly Data Logger 1 weeks, 1 days ago
Can you describe how you’ve connected the sensors to your Mayfly, there are multiple ways to do it correctly with the adapters we offer and even more if you’re doing it a non-traditional way. Better yet, could you take a pictures of your setup showing how you’ve connect each of the sensors to the Mayfly?
Coolbaugh Twp Water Monitoring Project became a registered member 1 weeks, 1 days ago
Coolbaugh Twp Water Monitoring Project
@coolbaughtwpeac
WFUWater replied to the topic Reading -9999 on all Sensors in the forum Mayfly Data Logger 1 weeks, 1 days ago
Thank you so much for the quick response! Could you detail how to make sure we are supplying the 12v to the ClariVue? That being said I am still a bit confused as to why the Hydros 21 would read as vacant when it is the only sensor connected during testing and it would run regardless of the voltage.
Shannon Hicks replied to the topic Clarivue10 data logging problems in the forum Mayfly Data Logger 1 weeks, 1 days ago
When the sensor is powered, you should be able to put the two probes of a voltmeter on the little screws on top of the screw terminal board where you’ve connected the ClariVue’s cable to the Mayfly. Put the black probe on the Gndscrew and the red probe on the V+ screw. You’ll know the sensor is being powered when the red LED on the bottom le…[Read more]