AT Commands

[Tim!]

Hello!

I have some question regarding At commands and logging information from the modem.

1. Is there a limit to how often one can issue AT+commands and get responses from the modem or can i log information from the modem multiple times a second? I am asking this since the signal level from AT+CESQ does not seem to react immediately to change.
2. What does the AT%CDATAPRFL do, is it related to coverage enhancement levels?
3. I have seen some boards that supports the command AT+NUESTATS is there an alternative for nrf9160 so that you can for example see the TX and  RX power and time. Or how would one go about measuring this?
4. Can one get information about if packages are being re transmitted?
5. Is there a way to track exactly when the modem enters psm and eDRX mode?

Best regards

Tim

[Øyvind]

Hello Tim, 

The AT Command Reference Guide does not include the commands you mention in 2 and 3.  In the nRF Connect SDK (NCS) we provide an at_client sample project which shows the usage of AT commands. More information can be found here.

Kind regards,
Øyvind

[awneil]

The important thing about AT commands is that you need to wait for the complete response to one command before starting the next.

Thus it is self-pacing.