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Huh. I don’t have any *good* suggestions, but he’s a hodgepodge of things to check :

You have to use bypass or USB direct to be able to use those commands, transparent/command mode won’t work. Can you get normal responses to other commands? (ie AT – OK; ATI – modem info)  Do you have your SIM card installed? The file being cleared is on the SIM…[Read more]

More info: It appears that the command is being sent to the modem at every comma; I had been pasting the entire command into the Console window and getting the 3 errors. If I try typing it by hand, as soon as I type this comma: at+crsm=176,

…it immediately returns ERROR.

I’m unable to query the FPLMN list. I did it successfully last week, so not sure what’s up now.

When I issue the command, I get 3 errors:

at+crsm=176,28539,0,0,12ERROR
ERROR
ERROR

I thought that the last time I got it to work, I was in bypass mode and airplane mode. This time, I’ve tried bypass and transparent modes and have tried it in airplane…[Read more]

Hi Neil!

Once I realized that I wanted more information than just the presence of water alone, and that reasonable measurements are possible for cheap, I placed the EC sensor on the back burner, for now. At least until my head is above water.
I do intend on coming back to this, pending demand. Right now, I am having a lot of fun with an optical…[Read more]

Hi Evan, I was wondering how your experiments are going.
I was thinking of constructing a ModularSensors class along what you had been talking about.
So this follows the
https://hackaday.io/project/7008-fly-wars-a-hackers-solution-to-world-hunger/log/24646-three-dollar-ec-ppm-meter-arduino
with a series voltage switched R of about 500, and an IEC…[Read more]

There’s probably a missing semi-colon or brace in your program code somewhere right above line 215.

Check first where you pasted in the UUID’s.  Each UUID should be enclosed with quotation marks, there should be a semicolon after both the registration token and the sampling feature and a comma after each UUID/variable in the UUID list.

You can…[Read more]

For some reason I can’t leave a comment with more than one attachment.

I understand. I assume that whatever is in the master branch is considered stable and OK to deploy in the field (while keeping in mind all standard caveats to software development and testing 🙂 ).

Delete lines 112-117 of the code I posted.

Huh.  It’s an “access is denied” error.  I’m guessing two processes tried to write to the same temporary folder – the automatic “check for new libraries in the library folder” process and the manual install probably collided.  Did you get the same error multiple times after exiting and reopening?

😛  In double checking what the number would be for Verizon when it appears on the FPLMN, the very first google hit I got was an issue with someone else trying to force a Hologram SIM to use Verizon:  https://github.com/botletics/SIM7000-LTE-Shield/issues/163  Per that thread from just a few days ago, others suspect that Verizon has just very re…[Read more]

If you’re having trouble, you can try going into bypass and checking the operator profile directly on the u-blox:  send AT+UMNOPROF?  It should reply 3 (matching up with the CP value).  If for some weird reason it doesn’t, you can change it by first disconnecting from the network, changing the profile, and then restarting:  AT+CFUN=0 (OK) AT+UMNOPR…[Read more]

Also, I’m shamefully bad about notifying anyone when I’ve updated the libraries.

Thanks Sara, that’s very helpful. -Matt

Thank you Sara! Using my XBee TH board and XCTU, I got my FPLMN list cleared, and am still trying to force a Verizon connection. Nothing yet, but I will keep trying, power cycling, switching to Bypass and back to transparent, etc.