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
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
Community Activity See all activity
boudia became a registered member 2 years, 3 months ago
boudia
@boudia
fisherba replied to the topic Code change for Meter Hydros 21 CTD in the forum Mayfly Data Logger 2 years, 3 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, 3 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, 3 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, 3 months ago
That was it – thanks!
-Matt
Shannon Hicks replied to the topic Error setting Hydros21 address in the forum Environmental Sensors 2 years, 3 months 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]
Matt Barney started the topic Error setting Hydros21 address in the forum Environmental Sensors 2 years, 3 months ago
I’m getting the error “Not a valid address” when using the b_address_change.ino sketch in Arduino IDE. However, the address does appear to be getting set as expected, and I can change it to 2 and back to 1; it outputs the error each time, so it just looks a little odd. I’ll attach the output from the serial monitor below.
This is with a new Gen 2…[Read more]
Shannon Hicks replied to the topic Hydros 21/Decagon CTD: reading error in the forum Environmental Sensors 2 years, 3 months ago
Yes, it’s just one line (currently line 107) of the MeterHydros21.h file that contains the most important change, which is this line: #<span class=”pl-k”>define</span> <span class=”pl-en”>HYDROS21_MEASUREMENT_TIME_MS</span> <span class=”pl-c1″>1000</span>
The previous setting was 500 milliseconds but it turns out the new Gen 2 CTD sensors need…[Read more]
Matt Barney replied to the topic Hydros 21/Decagon CTD: reading error in the forum Environmental Sensors 2 years, 3 months ago
We’ve just had a failure to communicate with our newest Hydros 21 sensors (likely Gen 2). While I’ve had success setting the address with the b_address_change sketch, my standard Mayfly code can’t talk to the sensor and returns values of -9999. It looks to me like the SDI-12 library has not changed since May 2021…[Read more]
KBR Kings River started the topic Maxbotix ModularSensors in the forum Environmental Sensors 2 years, 4 months ago
Using the ModularSensors code for a Maxbotix HRXL Ultrasonic Range Finder below
it references a sonarSerial and mentions having to set it up in the “Setting for Additional Serial Ports” but I am unable to find the correct “settings” to start the serial port? What are the the best Groove Pins to use, for the Sonic pins? For a Trigger pin and…[Read more]