Can I define an entire block of code?

[777funk 0]

I have a program with some pretty repetitive blocks of code (i.e Loop A, Loop B, Loop C, then Loop A again... etc) , is it possible to define an entire loop as a single line/function? For example say A=the below code:

{ 
 for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees 
 {                                  // in steps of 1 degree 
   myservo.write(pos);              // tell servo to go to position in variable 'pos' 
   delay(15);                       // waits 15ms for the servo to reach the position 
 } 
 for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees 
 {                                
   myservo.write(pos);              // tell servo to go to position in variable 'pos' 
   delay(15);                       // waits 15ms for the servo to reach the position 
 } 
} 

[cde 334]

That's called a function. Just google "c function" and you'll get a ton of information about it.

 

void loopyloopA()
{
  for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees 
 {                                  // in steps of 1 degree 
   myservo.write(pos);              // tell servo to go to position in variable 'pos' 
   delay(15);                       // waits 15ms for the servo to reach the position 
 } 
 for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees 
 {                                
   myservo.write(pos);              // tell servo to go to position in variable 'pos' 
   delay(15);                       // waits 15ms for the servo to reach the position 
 } 
}

 

then in your main code or wherever you need the loop, you call it as

loopyloopA();

[777funk 0]

If this is redculous forgive me. Still learning C programming. But here's what I just tried and it wouldn't compile:

 

   
#include 

Servo myservo;  // create servo object to control a servo 
               // a maximum of eight servo objects can be created 

int pos = 0;    // variable to store the servo position 

void setup() 
{ 
 myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
} 

Void loop () 
{
 void loopyloopA()
   {
      for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees
     {                                  // in steps of 1 degree
       myservo.write(pos);              // tell servo to go to position in variable 'pos'
       delay(15);                       // waits 15ms for the servo to reach the position
     }
     for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees
     {                               
       myservo.write(pos);              // tell servo to go to position in variable 'pos'
       delay(15);                       // waits 15ms for the servo to reach the position
     }
   }

loopyloopA();
}

[cubeberg 540]

You've got your function nested inside of another. It needs to be outside. It also needs to be above the calling function, or declared in a function prototype.

I'd suggest finding a tutorial on beginning C programming - it might make things a little less frustrating (although I'm glad to answer any questions).

 

   
#include 

Servo myservo;  // create servo object to control a servo 
               // a maximum of eight servo objects can be created 

int pos = 0;    // variable to store the servo position 

void setup() 
{ 
 myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
} 

void loopyloopA()
   {
      for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees
     {                                  // in steps of 1 degree
       myservo.write(pos);              // tell servo to go to position in variable 'pos'
       delay(15);                       // waits 15ms for the servo to reach the position
     }
     for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees
     {                               
       myservo.write(pos);              // tell servo to go to position in variable 'pos'
       delay(15);                       // waits 15ms for the servo to reach the position
     }
   }

Void loop () 
{    
loopyloopA();
}

[Rickta59 589]

If this is redculous forgive me. Still learning C programming. But here's what I just tried and it wouldn't compile:...

You can't write a function within another function. You might want to spend some time on a tutorial site first. Here is the tutorial on functions:

 

http://www.cprogramming.com/tutorial/c/lesson4.html

 

-rick