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BearRiverTUMayfly became a registered member 5 days, 21 hours ago
BearRiverTUMayfly
@tumayflybearriverdrainage
Matt Barney replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 6 days, 16 hours 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 1 week 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 1 week 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 1 week, 1 day ago
boudia
@boudia
fisherba replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 1 week, 1 day 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 1 week, 1 day 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? 1 week, 3 days 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 1 week, 6 days ago
That was it – thanks!
-Matt
Shannon Hicks replied to the topic Error setting Hydros21 address in the forum Environmental Sensors 1 week, 6 days ago
When you’re connected to the Mayfly with your computer, open the Arduino IDE’s Serial Monitor and check the settings of the dropdown box in the lower right hand part of the windows next to the baud rate. It should be set to “No line ending”. If you have it set to anything else, you’ll usually get an error when setting the address using that s…[Read more]