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Ms.Belle became a registered member 1 years, 7 months ago
Ms.Belle
@nung-mabelle
Jake Lemon started the topic Gen2 CTD Sensor Noisy Conductivity in the forum Environmental Sensors 1 years, 7 months ago
Hey there. Has anyone else noticed that the Gen2 CTD sensors seem to produce noisier conductivity data than the Gen1? I haven’t done any analysis to back this up have observed seemingly more anomalous conductivity values at sites where I’ve deployed this sensor. I can provide some examples if helpful. Generally I’m seeing drops of 50-150 us/cm…[Read more]
Noori Nagra became a registered member 1 years, 7 months ago
Noori Nagra
@nagran25
dani68k replied to the topic SDI-12 Slave in the forum Other Data Loggers 1 years, 7 months ago
Hi Neilh20,
After some tests and new code I succed with reading PH data from sensor with I2C, and trasmitting them to datalogger over the SDI-12.
Actually, I must left the slave device in listening mode every time using: mySDI12.forceListen();
For some reason I didn’t proceed that way… but finally I could find the way 😉
This is working in…[Read more]
Shannon Hicks replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 7 months ago
Reminder quote from the first post of this thread:  If you’ve got a basic question such as what are the board’s features or how it differs from previous versions, this is the place to ask. If you’ve got a more complicated question or issue, then it is probably best to start your own thread. The goal of this thread is to be a great informati…[Read more]
neilh20 replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 7 months ago
There is some onchip references, but maybe not useful. From the manual mega164A_PA-324A_PA-644A_PA-1284_P_Data-Sheet-40002070B.pdf  (applies to the mega1284)
Chp 23.2: “<span class=”fontstyle0″>Internal reference voltages of nominally 1.1V, 2.56V, or AV</span><span class=”fontstyle0″>CC </span><span class=”fontstyle0”>are provided On-chip. The v…[Read more]
marbles started the topic Issue connecting to cell network in the forum Mayfly Data Logger 1 years, 7 months ago
Hey everyone,
I’m new here. I have not been able to connect to the cell network. My sim has been activated and funded for a few months and the CTD sensor can receive data.
When I try to run the sketch DRWI_DigiLTE I can see the sensor data being processed in the serial monitor and the cell board turn on its blue and white leds. But the orange…[Read more]
Braedon replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 7 months ago
Okay, gotcha. It’s of interest for me because I am looking at attaching multiple apogee pyranometers and pyrgeometers to the Mayfly that are all analog outputs. Because the pyrgeometers also require adjustments based on an internal thermistor reading, it would require more than 4 analog pins, so I am just seeing if I could get a decent resolution…[Read more]
Shannon Hicks replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 7 months ago
The analog reference voltage (AREF) pin of the ATmega1284P is broken out to the left-hand 2×10 header if you wanted to apply a voltage other than (and less than) 3.3v. If you leave it floating and don’t specify the AREF in your code, then it’ll use the default 10-bit setting for any regular analog reading like you’ll find in most code…[Read more]
Braedon started the topic Infrared Radiometer Sensor Options in the forum Environmental Sensors 1 years, 7 months ago
Hey everyone! I’m wondering what you all have used and what alternatives exist out there for infrared radiometers or surface temperature sensors. I’ve mostly seen apogee sensors (https://www.apogeeinstruments.com/infraredradiometer/), but I’m wondering what other sensors people have used, particularly for terrestrial surface temperatures. Thanks!