Matt Barney

And it’s down again. 8:54am MDT. I’ll also post on GitHub.

Thanks Heather!

Hi Sara,

Today I started to shift my workflow to having all dependencies local to a given project as you suggested. I’m wondering whether it’s even necessary to clone the ModularSensors dependencies into the project’s .piolibdeps path? If I create a new PlatformIO project and modify its .ini file to include:

lib_ldf_mode = deep+
lib_ignore =…

[Read more]

The new SIM card from Verizon works! I first did some testing using XCTU, and I can set the Carrier Profile (CP) either to 3-Verizon, or to 0-Auto-detect, and it registers and works successfully. (Not surprisingly, it never registers when CP is set to 2 (AT&T), and I also presume that setting CP=0 in an AT&T-only coverage area would not…[Read more]

Thanks Sara. I managed to get the forbidden list displayed, and cleared. Not certain what I was doing wrong before.

If I remain in the Console and continue querying, the forbidden list will get repopulated after 15-30 seconds. The response is:

+CRSM: 144,0,"130184FFFFFFFFFFFFFFFFFF"

OK

So, assuming that that value decodes to MCC=311 and MNO=480,…[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]

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 🙂 ).

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.

Thanks, Sara; I’ll check out the FPLMN issue and keep trying with a modem at my desk.

What’s the easiest way to send AT commands directly to the modem? Load StreamDebugger on a Mayfly, as described here? https://www.envirodiy.org/topic/trouble-initializing-xbee3-lte-m/#post-12658

I can’t seem to get any response; i.e., nothing gets echoed to the…[Read more]

Re: updating XBee and u-blox firmware, I just noticed the ‘force cell modem update’ checkbox in XCTU defaulted to unchecked. Hadn’t noticed that before… oops. I’ll enable this from now on when updating my modems.

-M

OK, thank you, Sara! Bummer that there’s no clean solution yet for reliable LTE that’s carrier-agnostic. I suppose that’s asking a lot. 🙂

Matt

I also meant to mention that one of the ‘Bug Fixes’ in the XBee release notes indicates that they enabled flow control between the XBee and the u-blox, which hopefully is a good thing.

This is great news! Thank you @srgdamiano and @ckillen!! I’ve begun ordering parts for 9 additional stations and have been fearing that buying another 9 XBee3 LTE-M modems was going to lead us into a world of frustration with failing modems; hopefully this discovery prevents that.

Regarding XBee firmware: Just a week ago, we deployed a batch of…[Read more]

Wow – thanks, all, for the great information!

Because our problem site is relatively inconvenient to access, I think on our (@jlemontu-org ‘s) next visit, he’ll come armed with a number of options. We’ll pick up a Taoglas antenna, as well as bring along a spare Pulse antenna, in case the existing one is compromised. And we can experiment with…[Read more]