Check out the EnviroDIY Mayfly Data Logger, a powerful user-programmable microprocessor board that is fully compatible with Arduino IDE software.
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Oscamo replied to the topic Mobile Sensor Platform? in the forum Infrastructure and Equipment 9 hours, 9 minutes ago
Hm. Thanks @srgdamiano, thats one way of doing it. The use case I envisage is pretty simple. Lets take a single technician with a portable water quality monitor, like a YSI or something. He/She drops it into a river at Position A, records data. Then turns device off, moves to Position B, records data etc etc. Once “home” uploads the data to…[Read more]
Sara Damiano replied to the topic Connecting XBee3 LTE to the internet in the forum Mayfly Data Logger 9 hours, 29 minutes ago
Oops. So, it never tried for longer than 15 minutes with that sketch because the watchdog doesn’t get “fed” while it’s waiting for the internet and it “bites” (ie, forces the board to reset) after 15 minutes. But 15 minutes is still a pretty long time to wait.
After the first connection in a new location, it should connect much faster in…[Read more]
Sara Damiano replied to the topic Mobile Sensor Platform? in the forum Infrastructure and Equipment 10 hours, 14 minutes ago
Hm. I’m not quite sure I follow you.
It sounds like you have a sensor package that you deploy at one spot for a while, then you stop it, pack it up, and move it somewhere else. After some time, you move the sensor package back to the original site. Is there ever data being collected while it’s moving, or is the GPS data only being collected to…[Read more]
neilh replied to the topic Connecting XBee3 LTE to the internet in the forum Mayfly Data Logger 1 day, 11 hours ago
I had a similar problem – see my comment in https://www.envirodiy.org/topic/trouble-registering-with-lte-m-network-on-hologram/
The fix that seemed to work was if it didn’t connect after a 100 AI status polls it issues
gsmModem.sendAT(GF(“+CREG”));
Search for +CREG in…[Read more]
Oscamo replied to the topic Mobile Sensor Platform? in the forum Infrastructure and Equipment 1 day, 16 hours ago
Thanks @srgdamiano, this is a great way to display the data and I think my application is simpler than that. In principle, I want to create “spot” checks of sampled data similar to what has been done for decades with water quality monitors from YSI, Horiba, OTT etc but map them on a GIS system.
This means, the _device_ moves around (as it is…[Read more]
Matt Barney replied to the topic Connecting XBee3 LTE to the internet in the forum Mayfly Data Logger 2 days, 13 hours ago
I modified line endings and changed the wait time to 30 minutes: modem.connectInternet(1800000L). I then had to leave and left the Mayfly running overnight. Still no data at MMW, but I now see connections being logged on my Hologram dashboard, and a single message that shows data usage:…[Read more]
Matt Barney replied to the topic Connecting XBee3 LTE to the internet in the forum Mayfly Data Logger 3 days, 9 hours ago
Hi Sara,
Initially I was testing on USB power only, but will now keep the LiPo plugged in as well, though no success so far with that. (I’m guessing the LiPo is needed to provide adequate current for signal transmission?) I’m testing in my office in an urban area where we have good Verizon and AT&T signals. I did carefully press the antenna’s…[Read more]