How to send Carriage Return over nRF Toolbox UART Buttons?

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

480VAC — Wed, 15 Aug 2018 17:08:49 GMT

Old topic I know - and it seems the new version of the app has lost the ability to send EOL again. I did find that on iOS, you can install a unicode keyboard, and then type whatever characters via ascii codes. The keyboard I found is called "Unicode Keyboard - Search for Uni..." in the app store. It's $0.99.

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

flodis — Sun, 30 Jul 2017 06:40:18 GMT

Here is the trick to add " in the "nRF Toolbox" UART application for smartphones:

First - the Configure button text fields for editing the button data in the nRF toolbox app are multiline! Just press enter in the text field to make as many + pairs you like.
Secondly the EOL option [LF, CR, CR+LF] in the UART Configure button dialog act as a FILTER. For the filter option to work you first HAVE to add linebreaks to the text field.

Not so intuitive - as you may first think the UART app button command option selects what characters to append.

The second image displays a linebreak added in one of the the UART, Configure button text fields.

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Aleksander Nowakowski — Wed, 15 Jun 2016 08:07:38 GMT

Could you post here screens from the app (command dialog and the log after sending the data)?

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Cavemanatwork — Tue, 14 Jun 2016 19:26:43 GMT

Hmmm? i think it doesn't works. Whatever i choose, my Oszi always shows me a LF.

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Aleksander Nowakowski — Tue, 14 Jun 2016 15:02:31 GMT

Since 1.16.4 this is no longer required. You may select the EOL type when you configure the button. Remember to add a new line to your command at the end of the line.

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Aleksander Nowakowski — Tue, 14 Jun 2016 15:00:42 GMT

Ok, done. The app has been published on Play and the source code is now available on GitHub. You may also download the APK from there.

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Cavemanatwork — Tue, 14 Jun 2016 13:48:05 GMT

OMG! Sorry. :-)

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Aleksander Nowakowski — Tue, 14 Jun 2016 13:45:28 GMT

EOL = End Of Line :) In 1.16.4 you will be able to set which EOL is to be used for a command: CR, LF (default) or CR+LF.

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Cavemanatwork — Tue, 14 Jun 2016 13:43:46 GMT

Hi Martin, hi Aleksander,

thank you very much for your fast Response.

With my Oscilloscope i have seen that all transmitted Data are ended with a Line Feed. Now i have adapted the Software on my Microcotroller to understand LF as end Sign.

Is it possible with the new Version to choose between LF and CR?

And äh sorry..... what are EOLs? My English is not the best :-)

Thanks a lot Michael

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

Aleksander Nowakowski — Tue, 14 Jun 2016 12:33:20 GMT

Hi! You are right, that it's difficult to send CR over the UART using nRF Toolbox now. I can give you two solutions:

Wait an hour, I'm just doing a fix in the app and soon a new version with an option to switch between different EOLs will be possible
Use nRF Master Control Panel. There you may write a text as TEXT and add one byte with CR.

BR, Aleksander

RE: How to send Carriage Return over nRF Toolbox UART Buttons?

MartinBL — Mon, 13 Jun 2016 16:17:04 GMT

Hi,

Unfortunately there is no easy way to do this. At least it wasn't on my Android phone. There is no [CR] button on the keyboard, but I was told that I could try to make a .bin file with the characters I needed e.g. linefeed and carriage return. So I downloaded a Hex Editor and a File editor app and manually created a hex file with the values 0x0A (new line) and 0x0D (carriage return). Then I opened the file in a text editor and copy pasted the string into the Nordic UART app. The strange thing is that it seemed to work with new line, but not carriage return. I don't know why. It might be something on the terminal side (I used Tera Term), or maybe an Android vs Windows semantics issue. It is worth investigating some more.

A different workaround is to add app_uart_put('\r') in the function printing the string to UART on the application side. Then you would get a CR on every transfer though. You might also try to implement your own mechanism. You can e.g. use app_uart_put('\r') whenever you receive a string containing "\CR" or something like that.