Hi Anthony, I would also be available for testing/helping integrate LoRa networking and I have some gateways. Wow great news to hear there is an implementation done.
For my local SSU I volunteer as Industry Advisor, and for last years Engineering Capstone project a student used an Adafruit LoRa module on a raspberry pi pretty effectively.…[Read more]
Hello I’ve just had a request to quote for a number of water monitoring devices, each one includes a Mayfly. I’ve put on the response quote subject to availability of the Stroud Water Research Center’s Mayfly.
Is it useful to be able to indicate potential demand?. Its a pretty typical thing for selling that there is a demand forecast.
Matt, LoRa is a big leap beyond the Xbee 900 MHz self-meshing and local network stuff.
Shannon set up an Xbee 900 MHz network for us in 2012, which I think is still in use. Short story is that 1 km range is max and bandwidth is low for standard HTTP Post requests.
LoRa is much longer range (5-10 miles or more) and lower power. It does this with…[Read more]
Dale, I’m not familiar at all with the Semtech SX1272MB2DAS Shield LoRa radio module.
I am, however, quite familiar with the MultiTech mDotTM LoRa radio modules, which come with an XBee interface that plugs right into the Mayfly and works without any trouble. My colleagues at LimnoTech’s Ann Arbor office have been using them successfully in the…[Read more]
Hi James, thanks for the agupubs reference – very nice to see the LiDar work.
I had talked to a LiDar guy some years ago and they had said they didn’t think it would work for streams, but that ref is showing it very nicely.
I’ve used 20mA depth sensors with Onset loggers, and had a couple of UL6a…[Read more]
I was having the same problem with the address change sketch (using the Atom PlatforIO) so I tried using Arduino IDE and that worked. It saw the SDI-12 address of 0 at pin 7 and I successfully changed it to 1 and now I’m getting values from the Meter CTD-10. Good luck. Let me know if you have any questions.
Interesting idea for a secondary board, perhaps linked into the USB. I have heard it done before via the JTAG, but I don’t believe this is available for Mayfly.
Possibly the biggest question on issues like this is power budget. If there was a reliable power budget for a linux SBC (beaglebone.org) it would be relatively easy.
One area to track…[Read more]
Hey happy to contribute where I can.
My wife and I started a trip in Hamilton with some friends in 1990. Spent 2 months traveling round NZ as part of a round the world trip. 🙂
I have a fork of ModularSensors and focus on a small subset of sensors, scaleability through ability to build releases, download a defined binary of the code, and test…[Read more]
Hi James, great to hear someone else interested. I just got a “relative EC” working nicely and just gave them out to be deployed last week.
The “relative EC” is to be able to measure stream disconnect. For the <<dry>> hot climate we have in California, looking to monitor when the stream goes dry.
There is no reason why it can’t calibrated,…[Read more]
I have come up with an inline plug-in circuit that will do the voltage shifting ( and generate a +12V power and ESD protection) that I’m working on, so just mentioning it here. If anybody is interested in the discussion we could take it to a separate thread.
Just an FYI, as I understand the SDI-12 spec, the receiving instrument should receive 3.5V for a ‘0’ or space. The mayfly port is only capable of supplying 3.3V – so it may work for most SDI-12 instruments, and is working for one SDI-12 instrument I’m using
Typically with off-spec issues, things can work on some instruments and then not on…[Read more]
There is a Mayfly Protoshield rev1 – but I can’t find if its for sale anywhere.
I have one, and no plans for it right now so if you wanted it I could send it to you.
The details are here, but no gerbers. With gerbers it would be possible to order the base boards directly from o…[Read more]
There is a Mayfly prototyping board, which I should have used for one project, and forgot to 🙂
I’ve prototyped with a basic 2×10 male to male header using wire wrap and soldering to the header. However I cut the 2×10 from a larger length I had, and it became unreliable pretty quickly. For a cable maybe 0.05″ ribbon cable with IDC he…[Read more]
The response is great.
For my WiFi/Xbee S6 accelerated updates 2min sampling update every 4minutes the ACK time over 700 POSTS time is between 200mS and 774mS. All POST succeeding 1st attempt.
For my Verizon/Xbee LTE at 15minutes sampling the ACK time is typically 5sec, very occasionaly about 1.5sec, and also 7Sec. For this test it delivered t…[Read more]
Neil & Matt, thanks for that very good news from your testing!
I’m really glad to hear that everything seems to be working well again!!!
Over the last couple of days I’m getting very good response when using a WiFi, and the response time for 201 ack is sub 1second.
This is a fast check with 2min sampling time, and SendX=2, so delivery every 4minutes. I get a response typically under 0.5seconds, and occasionally ~ 0.6Seconds. So for 1250 messages all have been delivered, 1st time…[Read more]
Hey good to hear.
I haven’t been able to do a lot of testing, and I was out yesterday but I enabled a laptop computer to monitor one beta system overnight that is using verizon starting at 9pm PST. (though I forgot to add the power cord to the laptop and it turned off after 2hrs !! ). Its sampling at 15minutes, taking 8 readings, and pus…[Read more]
We think we found and fixed the major issue with slowness and 502/504 Gateway errors that have been increasing since this spring!
Please let us know if you see any slowdowns from the web-browser or gateway errors from devices trying to post data, just in case there’s yet another issue we didn’t notice.
Hey All, we found an issue that cropped up in late June on the database server for Monitor My Watershed. We’ll be doing a planned maintenance shutdown today at around 12:30 ET to fix the issue, and it will likely take about an hour. We’ll let you know when it is back up and running.
Matt, I’m glad you found the update helpful! I would be interested in connecting with you to more of your perspectives and long-term needs, if that’s of interest to you.
- Load More