nRF52840: Console commandline over BLE (BLE CLI) usage

[Duy]

Dear Nordic Support,

I am using nRF52840 and BLE SDK v15.2. I want to control my nRF52840 through both UART CLI and BLE CLI so I try and read example: nRF5_SDK_15.2.0_9412b96\examples\ble_peripheral\experimental\ble_app_cli

As I read and understand your code, this program should work on RTT console, UART console and BLE console; but when I tried to control the nRF52840 through BLE using "led on" and "led off", nothing happened (commands sent from my phone). I am using nRF Connect and nRF Toolbox to send command to the nRF52840.

The "led on" and "led off" work for UART CLI.

Could you give me any ideas about this? Does Nordic library supports controlling over BLE CLI?

Thank you and best regards,

            Duy

[awneil]

It worked for me!

Duy said:

I tried to control the nRF52840 through BLE using "led on" and "led off"

Sorry - not clear what you mean by that?

Please describe in detail what, exactly, you are doing.

I did find that you need a CR (and/or LF?) on the end for the command to be executed ...

[Duy]

Hi awneil,

The command is received but it is not actioned.

[Vidar Berg]

I've tested it with the Toolbox app now. Turns out that you have to press enter for the line break to be inserted. Like this:

[Duy]

Hello Vidar Berg,

Thank you for your answer. It works for me now. This error is...so funny.

One more question: is it because of the library fault or the application fault?

Best regards,

     Duy

[Vidar Berg]

I think it makes sense: the app allows you to select if you want to send a LF, CR or both when you press enter. Otherwise, you would have been limited to 1 EOL per button. 

[awneil]

It makes sense once you know - but it is certainly not obvious!

Would be good if this were documented.

But it still doesn't explain:

Duy said:

The is received but all are 0x00

[Duy]

Hi Vidar Berg ,

I agree with awneil about the documenting about "adding enter for the line break". It is confusing with the EOL in the application. This also makes me wonder that the mobile app doesn't send out the CR, LF or CR + LF. 

awneil I am still debugging the reason of 

awneil said:

The is received but all are 0x00

inside the code. Thank you for your support also.