What does this error message mean?

Guides
21

Easy fix you have square braces [ ] not ( )
Change them and try it. Functions use ( ) variable arrays use [ ]

Regards
Jim

void setup() {
Serial.begin(115200);
Serial.println("================");  
Serial.println(" LED Blink ");
Serial.println("================");

  pinMode(13, OUTPUT); 
} 
 
void loop() {
  digitalWrite(13, HIGH);
  delay(1000); 
  digitalWrite(13, LOW);
  delay(1000);
  Serial.print('.');

}
22

Well, as easy as that-when you know how !! It works. I almost can’t believe it,something as [seemingly] simple as the type of bracket.

Thank you to everyone who chimed in and offered their advice-I really appreciate it.

I’m keen to get stuck in and work through the remainder of the course. Thanks again.

Cheers-Ian

23

Glad you have it fixed.
C++ programming language is very syntax orientated, … still gets me, … often.
A single characters in the wrong place can make the compile fail.
And characters all have special meanings.

Good learning process in this case for you.

Cheers
Jim

EDIT: As Robin pointed out I should have added ++ after my reference to C programming language. I have fixed the post. Starting out I guess we should use correct terminology. Cheers

24

@James46717

Just being pedantic, but the native language of the Arduino IDE is C++ (C plus plus) and not C.
And yes, it can be difficult, but like many programming languages, familiarity and regular use make it easier.

@Ian80523

I still recommend reading up on the language and syntax. Links posted earlier in this thread, or this one below (Arduino reference):

https://www.arduino.cc/reference/en/

25

Yes, I’ll certainly have a read of that and hopefully get my head around it.

Thanks again.

Regards-Ian