'code check' invalid name

[petercl14]

nothing much working on arduino anymore. subroutine programs not working. never had a problem with giving a sketch a name before. the name I gave was 'code check'.
error saying not underscored etc. this was always before taken care of automatically. not now.
has there been some massive change in the Arduino IDE that we have not been informed of.
try it yourself with a simple sketch. you will get invalid name. this is not how it was before.

[sonofcy]

Not a clue what you are talking about. some screen grabs might help.

[jremington]

Just a random rant?

If not, hints on successfully posting can be found in the "How to get the best out of this forum" post.

[herbschwarz]

Maybe the system is complaining about the space between the two words?

[xfpd]

My tuppence is on the subject of the other topic with just as cryptic a title...

Program not running

Hi all, I am using the nano board to operate a SG90 micro servo. I am using a 5v supply at 2 amps. I have plugged the 5v line directly into the 5v pin. Power to the servo is separate and not from the board. I have a program on the nano to run the servo. Nothing was happening. The servo was not moving. When I plugged in the nano to the usb port on my computer the servo started moving according to the programmed instructions. When disconnected from the usb the servo continued to work as programm…

(something about the Sol revolving around Earth)

More relevant...

Coding error for subroutine

what is wrong with this coding. trying to use a subroutine. float time; float lt; void setup() { Serial.begin(115200); } void loop() { time(); // time is name of subroutine lt; Serial.println(lt); } time(){ lt=5; return lt; }

[Grumpy_Mike]

@petercl14

has there been some massive change in the Arduino IDE that we have not been informed of.

What version of the IDE is this?

It was always the case that a space in the file name was not permitted. It would be a massive change if it now auto corrected this mistake.

[JohnLincoln]

This will explain what petercl14 was talking about.

I did tests using IDE versions 1.8.19 and 2.3.4.

• In Arduino IDE 1.8.19, I opened a new file.
• I tried to save it as 'test file'.
• The IDE saved the file as 'test_file' and outputs a message saying the name had been modified, and explains why.

• In Arduino IDE 2.3.4, I opened a new file.
• I tried to save it as 'test file 2'.
• The IDE opens up a pop-up that says the name is invalid and asks you if you want to save it with a different name.

I was aware of how IDE 1.8.19 handled the situation, but I did not know what IDE 2.3.4 did, as I had already learned to not put spaces in the file name by the time it came out.

[ptillisch]

Thanks @JohnLincoln for adding this detailed explanation which was lacking from @petercl14's post.

Although it is true that there is a difference in the behavior of the two IDE versions, surely this could not reasonably be described as:

@petercl14

some massive change in the Arduino IDE

In my opinion, the behavior of Arduino IDE 2.x is an improvement since it gives the user the freedom to chose their own compliant sketch name instead of just going ahead with giving it a different name from the one the user intended. For example, the user might want to follow the common convention of using the "PascalCase" style for the sketch name instead of the "snake_case" style forced by Arduino IDE 1.x under these conditions.

In no case should this result in "subroutine programs not working". If this is happening, I would like to investigate it, but I would need more information to do so.