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Anthony Aufdenkampe replied to the topic Mayfly Dissolved Oxygen Sensor in the forum Mayfly Data Logger 7 hours, 44 minutes ago

I forgot to mention that YosemiTech also makes a multi-parameter sonde with an optional wiper. https://www.yosemitech.com/en/product-20.html

This is an approach to having a wiper on the DO probe, as none of the stand-alone DO probes have a wiper (unlike Turbidity, Chlorophyl and Blue-Green Algal stand-alone sensors, which have models with built-in…[Read more]
Anthony Aufdenkampe replied to the topic Mayfly Dissolved Oxygen Sensor in the forum Mayfly Data Logger 7 hours, 58 minutes ago
I highly recommend the YosemiTech DO sensors, which use optical sensing technology for long-term stability. https://www.yosemitech.com/en/product-cat-11.html

They use Modbus communication and can be user-calibrated. Here are their two main models (the Y505 is new and not on their website).

Y504 (standard model):
[Read more]
Adam Gold replied to the topic Mayfly Dissolved Oxygen Sensor in the forum Mayfly Data Logger 3 days, 18 hours ago

Based on the list of supported sensors (https://github.com/EnviroDIY/ModularSensors), it looks like a Yosemitech DO sensor is another option.
Adam Gold replied to the topic Mayfly Dissolved Oxygen Sensor in the forum Mayfly Data Logger 3 days, 18 hours ago

You might want to check out Atlas Scientific DO sensors (https://www.atlas-scientific.com/product_pages/kits/do_kit.html). They are galvanic probes that are cheap and fairly accurate (+- 0.05 mg/l), but they do require a fair bit of effort to piece together. You would need the DO kit (previous link, $280), an isolated carrier board ($40, https://w…[Read more]
Heather Brooks wrote a new post, Making Big Leaps in DIY Watershed Monitoring 4 days, 19 hours ago

The following is an excerpt from “A digital Mayfly swarm is emerging,” originally published as a project update in Eos. Read the full article on stroudcenter.org or access it on the Eos website.
A Digital May […]
lemon started the topic Mayfly Dissolved Oxygen Sensor in the forum Mayfly Data Logger 1 week ago

I’m working with a watershed groups located in a watershed with intense CAFO activity. They are interested in monitoring DO continuously using the Mayfly EnviroDIY Monitoring Station. I was recommended the Zebra-Tech Optical DO sensor which costs nearly 3500. I’m sure this is a great sensor but is a little expensive for this group. Any…[Read more]
JiadaH2O started the topic Can't open device COM3 in Arduino in the forum Mayfly Data Logger 1 week, 3 days ago

Hi:

I’m loading the sketch driver to MB7383 sensor

The driver sketch is from here: https://www.envirodiy.org/mayfly/software/ultrasonic-sensor/

However, I got an error showing in the attached image, anyone know how to solve it? Thanks!
Shannon Hicks replied to the topic Buy 20-25 Mayfly Data Loggers and Proto Shields in the forum Mayfly Data Logger 2 weeks ago

For small orders, we only sell through our Amazon storefront. But since you need a large order, it’s best to contact us directly to see what we can do for you. You can send me an email at mayfly@envirodiy.org and we can continue the discussion there.
Heath started the topic Buy 20-25 Mayfly Data Loggers and Proto Shields in the forum Mayfly Data Logger 2 weeks, 1 day ago

Hello,

What is the best way to buy 20-25 of your loggers and wing shields?
– https://www.amazon.com/EnviroDIY-Mayfly-Logger-Arduino-Compatible/dp/B01F9B4WCG
– https://www.amazon.com/Stroud-Water-Research-Center-ProtoShield/dp/B06Y5NP42G

Looks like I could buy on Amazon, but I thought I might reach out to see if there is a better way.
Shannon Hicks replied to the topic Attaching a Campbell Scientific OBS3+ turbidity sensor to Mayfly in the forum Mayfly Data Logger 4 weeks ago

The Grove 6-pin screw terminal adapter board is now available on Amazon: https://www.amazon.com/dp/B07PVKQVH8
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