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
Fiona started the topic Installation in Soft Substrate/Docks and Buoys in the forum Infrastructure and Equipment 2 years, 4 months ago
Hi All,
We are in an area that experiences a 5-6 foot tidal range, and many of our sites are composed of salt marsh with soft, muddy substrate. Has anyone had any issues using the suggested rebar installation in this type of environment? I’d like to avoid the possibility of sediment burying our sensor setup and was curious if anyone had more…[Read more]
TUBearRiver became a registered member 2 years, 4 months ago
TUBearRiver
@tumayflybearriverdrainage
Matt Barney replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 2 years, 4 months ago
A couple bits of additional info. To visually identify whether your Hydros 21 is a Gen 1 or a Gen 2, see attached photos of the sensor head on each version. Note that some Gen 1’s had red cables, but not all.
Second, as Shannon noted in the post she linked to above, the address-setting on the Gen 2 is slightly more finicky; you just have to…[Read more]
Shannon Hicks replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 2 years, 4 months ago
Yes, the update made to the ModularSensors code in in order to fix Hydros 21 is backwards compatible. I mentioned it last week in this post: https://www.envirodiy.org/topic/hydros-21-decagon-ctd-reading-error/#post-17066
It seems that in the past year Meter Group made some changes to the amount of time the CTD sensors need to take a…[Read more]
Stephen H replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 2 years, 4 months ago
Does the new setting still work with the older sensors? Do we need to maintain 2 sets of code? Thx.
boudia became a registered member 2 years, 4 months ago
boudia
@boudia
fisherba replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 2 years, 4 months ago
Noted. Thank you. This is in my next couple weeks of existence.
Matt Barney started the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 2 years, 4 months ago
I don’t recall seeing any announcement on the forums, so I thought I’d share with everyone that the latest Hydros 21 sensors (Generation 2) require ModularSensors version 0.33.3 or later. We recently learned this after replacing a failed sensor in the field, and our Mayfly could no longer communicate with it. Since we have dozens of EnviroDIY…[Read more]
James_NZ commented on the post, How Do EnviroDIY Monitoring Stations Compare With USGS Stations? 2 years, 4 months ago
Hi Scott, interesting article! Regarding turbidity, Rob Davies-Colley, an academic here in NZ has been doing some research comparing nephelometers, as turbidity thresholds are often written into environmental […]
Matt Barney replied to the topic Error setting Hydros21 address in the forum Environmental Sensors 2 years, 4 months ago
That was it – thanks!
-Matt