No Response from Thingy91 via Serial Terminal Commands

RE: No Response from Thingy91 via Serial Terminal Commands

Øyvind — Wed, 14 Dec 2022 07:34:49 GMT

Hello again, the Serial LTE Modem documentation states the following under Connecting with a PC

I've tested here with minicom and PuTTY, and it seems to work as it should.

Let me know how it works for you.

Kind regards,
Øyvind

RE: No Response from Thingy91 via Serial Terminal Commands

Øyvind — Tue, 13 Dec 2022 18:56:04 GMT

Thanks for clarifying. I see the same on my side. Looks like an issue with the Serial LTE Modem. I've tried to build and flash from the SDK and to program a precompiled .hex with same result.

Will need some more time to investigate.

-Øyvind

RE: No Response from Thingy91 via Serial Terminal Commands

xr47 — Mon, 12 Dec 2022 21:30:05 GMT

I built it from the precompiled package. The LTE Link Monitor is not my issue. The issue I have is that using a serial terminal, such as minicom or PuTTY, the modem does not respond to a single command; not one. However, when I use the LTE Link monitor it functions as expected. Even further, if I use the LTE Link monitor in conjunction with a serial terminal like minicom or PuTTY, I can send commands via the LTE Link Monitor and then receive the appropriate response via minicom or PuTYY; whichever I have open. I want to forego using the LTE Link Monitor entirely and only use a serial terminal application due to the type of development I am doing. Hopefully that clears up the context for you.

RE: No Response from Thingy91 via Serial Terminal Commands

Øyvind — Mon, 12 Dec 2022 21:23:21 GMT

Hello,

Did you program the Serial LTE Modem from the precompiled package for Thingy:91 or did you build from the nRF Connect SDK? If the latter, what version of the SDK are you using? I tested with building from our latest tag, v2.2.0 and programmed the Thingy:91. Running the LTE Link Monitor gave me no issues with the connection. Do note that it should not be connected to two serial terminals at once.

Kind regards,
Øyvind