Cant communicate via port - only get +CESQ Answer

[Jay.Son]

Hey There,

The problem I have is the following:

I am able to open a Port via Putty and C# Script. I set it up like I found it in the docs. (https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/gs_testing.html)

With LF and CR implict, with Force on echo and editing, with no Hardware Flow Control...

I do not use RTT right now. With Putty I'am able to see something, but cannot send any messages to the device and with my .cs I cant get anything because SerialPort.ReadLine() never stops and my Raspi waits for Data all the time. I have tried to solve it with a DataReceivedHandler - Method but nothing changes.

If I use the Shell to open the port and send data, the same thing heappens.

I is possible that my C# script is not correct, but with putty should i work and it dosent.

Thanks for Help!

[Sigurd]

Hi,

Are you testing with a nRF9160-DK? or a custom board ?

What sample are you testing? The at_client sample?

[Jay.Son]

Hello,

sorry I forgot to let you know: I am working with a Nordic Thingy 91 and a Raspberry PI 3B.

I solved the problem by my own. With a new MCU boot i updated the client.hex and firmware. After this procedure I am able to communicate.

Thank you for your investigation. :)

best regards

Joseph