How do I pass parameters to a function?

Forum 2005-2010 (read only) Software Syntax & Programs
#1

Howdy.

Please forgive my noobness, but how do I pass parameters to a function eg:

void loop() { MyFunction(1000); }

void MyFunction { X = the vaule passed from the function call }

Basically I want to tell my function a value, just as you would use a library call eg: thing.attach(1);

value 1 gets passed to the function and I can use the it as a variable.

Cheers.

#2

Howdy.

Please forgive my noobness, but how do I pass parameters to a function eg:

void loop() { MyFunction(1000); }

void MyFunction { X = the vaule passed from the function call }

Like this:

void loop()
{
MyFunction(1000);
}

void MyFunction( int x )
{
  //x = the vaule passed from the function call
}
#3

Hi,

I have tried that^ but now get:

" In function ‘void loop()’:
error: ‘fwd_slowstop’ was not declared in this scope At global scope:"

Here is my updated code:

void loop()
{
fwd_slowstop(1000);
}

void fwd_slowstop(int duration);
{
int delaytime;
delaytime = (duration / 20;)
for (int i=70; i <=90 ; i++){
servo.write(i);
delay(delaytime);
}
}

#4

Got it sorted thanks.

void loop()
{
fwd_slowstop(1000);
delay(5000);
}

void fwd_slowstop(int duration)
{
int delaytime;
delaytime = (duration / 20);
for (int i=70; i <=90 ; i++){
servo.write(i);
delay(delaytime);
}
}

#5

The only reason it did not work first time around was because you have a semi-colon after the function declaration..

void fwd_slowstop(int duration);
1 Like
#6