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  VS Arduino › › › serial monitor: empty line after each text line
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Hot Topic (More than 8 Replies) serial monitor: empty line after each text line (Read 245 times)
Helmut
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serial monitor: empty line after each text line
May 25th, 2026 at 2:19pm
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Hello,

I don´t know why but since some time (maybe last update ?) after each text line i get an empty line in the serial monitor.

I didn´t change the code.
I checked it with the Arduino IDE serial monitor and there it is ok.

I tried difference settings but nothing change it.

As attached a pic of the VS serial monitor with the empty lines and a pic from the Arduino IDE serial monitor.

How can i fix it?

Visual Micro V2026.422.2201

  
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Simon@Visual Micro
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Re: serial monitor: empty line after each text line
Reply #1 - May 26th, 2026 at 10:47am
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Thanks for the report.

Could you attach the build output with the below options enabled, and a quick example or excerpt from your sketch around the print statements?
  • vMicro > Compiler > Verbose
  • vMicro > Compiler > Show Build Properties


This is just to ensure we replicate the issue fully so we can provide the fix ASAP.
  
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Helmut
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Re: serial monitor: empty line after each text line
Reply #2 - May 26th, 2026 at 11:06am
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Hello,
as attached the micro build output.

The print statements are very easy:
Code (C++)
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Serial.printf("cw: infotext - no: %s, text: %s\n", controldata.number, controldata.text);


\n is neccessary to get a new line with printf

But it happens also with println
Code (C++)
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Serial.println(F("----------------------------------"));

« Last Edit: May 26th, 2026 at 11:08am by Helmut »  
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Simon@Visual Micro
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Re: serial monitor: empty line after each text line
Reply #3 - May 26th, 2026 at 11:21am
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Thanks for the information and files.

This is related to the Serial Debugger being enabled, which we will resolve as soon as possible.

If it is not in use it can be disabled by changing the  Build configuration to Release.

Ill update when the fix is available.
  
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Helmut
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Re: serial monitor: empty line after each text line
Reply #4 - May 26th, 2026 at 11:30am
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how can i change the build configuration?
  
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Simon@Visual Micro
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Re: serial monitor: empty line after each text line
Reply #5 - May 26th, 2026 at 11:34am
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This is shown on the below page:
https://www.visualmicro.com/page/User-Guide.aspx?doc=Build-Configurations.html

Currently it is a box at the top of your VS Toolbars which will show "Debug", change it to "Release" and then build and upload again.
  
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Helmut
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Re: serial monitor: empty line after each text line
Reply #6 - May 26th, 2026 at 11:44am
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with "release" it works
  
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Simon@Visual Micro
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Re: serial monitor: empty line after each text line
Reply #7 - May 26th, 2026 at 1:43pm
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Thanks for confirming, we will continue to investigate and fix this area, and update this thread when the fix is available
  
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Re: serial monitor: empty line after each text line
Reply #8 - May 28th, 2026 at 1:00pm
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The latest release (26.0422.08) at the top of the below board will resolve the issue with the new lines when using the Serial Debugger:-
https://www.visualmicro.com/forums/YaBB.pl?board=VS_ARDUINO_EXT_RELEASES

Let us know if you have any further issues with this problem, and thanks again for reporting and assisting with diagnosing the issue.
  
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Helmut
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Re: serial monitor: empty line after each text line
Reply #9 - May 28th, 2026 at 4:51pm
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Thank you for the new version
it works perfectly fine.
  
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