One very minor last question – for the DIP switch, that would be turning the USB DIP to ‘off’ for the purposes of LED operation, correct? The ‘Power’ DIP switch would remain ‘on’?

Thank you!

Dave

I ordered several boards in the 1.0 release in the fall as replacements for 0.5 boards that are currently in the field. Our setup for those involved using DIN rails to connect large marine cycle batteries so we could keep our terrestrial stations operational during the winter. So, we used the 12v regulator on the 0.5 board and it has…[Read more]

We had been using the EnviroDIY Libraries as well as libraries contained within the IDE itself. Our code uses sections of the sample logger sketch, but have been built out a bit to combine possible analog sensors as well as communicate with Xbee.

I’d be happy to share with you – it’s not super long and you’ll see that it is pretty…[Read more]

We were able to allow the Mayfly to operate by updating the libraries in our code. We are using some core IDE libraries as well as some EnviroDIY libraries. My sense is that there might be a conflict between the recent update to the SD library, and perhaps a pin interrupt library from EnviroDIY, but I’m not sure.

One…[Read more]

Recently we’ve expanded our terrestrial Mayfly network to include 7 new stations in a research forest in Vermont. We installed 2 stations in the fall and data was logged just fine.

We set everything up identically, using the same code and the same libraries. Set the RTC, addressed all the sensors. No problem. Checked the…[Read more]

A forest floor is a complex place. Throughout the depths of the litter and soil layers, dead organic material is broken down […]

Some updates on this project – we now have 12 loggers monitoring 8 sensors at each site. It took a full field season but now have all the wiring free of shorts and power problems. We have mostly been focused on the data collection side and, because of COVID, don’t have resources to work solely on the 900Mhz radio network element…[Read more]

One cool piece of info for you all is that the Mayflys we had installed over-winter in northern NH made it through -20F…[Read more]

We never revisited the issue and instead just gave the address to the CS-215 via a CS logger. I know that our team installed an ATMOS-14 at the site, and got around power issues by just powering the sensors separately from the Mayfly board by using DIN rails. It really seems that the different power requirements between the board and the…[Read more]

Very quick question. Something I didn’t see listed in the above replies has to do with antenna selection. Anthony or Sara, do you have a recommendation as to an antenna for one of the new Digi LTE-M Xbee3’s? We have had really good success with the 900mhz xbees and are now working on projects where there is cell service, so we’re…[Read more]

This is very helpful! We’ve ordered a few XBee PRO S3B 900 modules but are having trouble getting them to communicate via the Mayfly script.

One thing we think may be a problem is whether or not we chose the ‘programmable’ version of the modules. I noticed that Scott had an issue with this in another post from earlier in the Spring, and…[Read more]

I thought that I would start a new thread in case anyone is interested in using their Mayfly loggers in locations where there is not reliable cell service or in areas of dense vegetation.

This past summer we (Dartmouth, Plymouth State University) have been working with the US Forest Service to install a sensor network to monitor…[Read more]

Just an update here. Due to the issues with the CS-215, we ultimately decided to go with the Meter Group’s ATMOS-41. It worked seamlessly with the Mayfly and our script and we had no issues with addresses or voltages. Seeing that it was relatively similar in cost, it was an easy decision. This evades the answer to the question, so…[Read more]

On friday, we installed roughly 60 Acclima TDR sensors to monitor soil and dead wood moisture over time. We utilized 3 Mayflys in boxes, powered by lead-acid rechargable batteries and an RTC setup to do 30-minute collections. Installing this many sensors required us to utilize DIN rails instead of Grove…[Read more]

Just to loop back – we were in touch with Campbell and their suggestion was also along the lines of the 3.5V voltage requirement. In the meantime, we picked up a Meter Group (formerly Decagon) ATMOS-14 sensor which collects temp/RH/VP and it worked perfectly. Since we only had to install one, we just went with that.

We’ll try to figure…[Read more]

We spent several hours today trying to work with the CS-215. We did update and use the most recent library (1.3.1) but were still having issues with the two examples. For the address change example, all of the addresses were vacant, even though we had defined the sensor having an address previously using a CR1000 (Campbell) logger. The…[Read more]

Thank you for getting back to me. I’ll check the version of the library we have and will capture the serial output. We won’t be having a lab meeting until Tuesday so I will send it right after that. I noticed that there were updates last month so perhaps that will sort things out. In the meantime, thank you for helping!

Dave

We have made some good strides getting a Mayfly logger network started here in New Hampshire thanks to all the information here on Enviro-DIYs forums. We can now collect measurements from multiple SDI-12 devices, store to an SD card, connected to a battery and RTC for sleep when not collecting.

We’ve been thinking about adding a…[Read more]

I’d be interested to hear what you find. Here in NH we have interest in sap flow measurements for projects in conjunction with the Proctor Maple Syrup Institute at UVM. Installing Mayfly-based networks could be really interesting to them.

Dave

Yes of course! Just checked – we have 0.5b. Don’t know how I overlooked that!

Another quick question that you may/may not know – if you are connecting an external 12v power supply to the mayfly, what type of jack is needed to connect the power source to the Mayfly? Is that just a male JST jack? (pictured here: jack)

Thanks!!

I’m working on setting up a sensor network with a variety of soil moisture and temp/rh sensors. We’re using a CS-215 to handle temp/RH and it requires 12VDC. The trick is that we obtained our Mayfly via a colleague at another institution and aren’t sure if the board is 0.5 or 0.4. Obviously if it is 0.5 it can handle the 12V…[Read more]

Well right now we’re quite focused on a handful of important characteristics of forest ecosystems, predominantly air T, soil T, plant available moisture, and volumetric soil moisture. The general paradigm shift we see now is that single sensor nodes do not provide the spatial or temporal resolution for us to understand microclimate…[Read more]