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[on:]

I want to put this on one line.

pinMode(2, OUTPUT);
All the way through to pin 10. Can it be done?

Also, digitalWrite(2, LOW);
All the way through to pin 10. Same?

[Reply #1 on:]

Using a for loop:

Code:

for ( byte i = 2; i <= 10; i++ )
{
  pinMode( i, OUTPUT );
  digitalWrite( i, LOW );
}

Well not really one line but almost

[Reply #2 on:]

Modifying guix's suggestion:

Code:

for ( byte i = 2; i <= 10; i++ )  pinMode( i, OUTPUT );

One line.

[Reply #3 on:]

And without spaces?

Code:

for(byte i=2;i<=10;i++)pinMode(i,OUTPUT);

[Reply #4 on:]

All right already! The big bad FOR shows it head again!
Thought I could do it with these things:  (   ),    [   ],    {   }
But, guess not.
Thanks all...

[Reply #5 on:]

You can invent your own language if you like:

Code:

pinMode ( { 2 .. 10 } , OUTPUT);

But it isn't C.

The big bad FOR shows it head again

Loops are a fundamental part of programming. May as well accept it.

[Reply #6 on:]

The big bad FOR shows it head again!

If that worries you you're going to have a hard time programming

______
Rob

[Reply #7 on:]

All the way through to pin 10. Can it be done?

How about this?

Code:

pinMode(2, OUTPUT); pinMode(3, OUTPUT); pinMode(4, OUTPUT); ...., pinMode(10, OUTPUT);

If those pins are all on the same port, you can ever do it with one statement.

[Reply #8 on:]

If those pins are all on the same port, you can ever do it with one statement.

Not if you want the code to stick to using the Arduino core code routines and remain portable
across other boards that use different processors or different variants, i.e.
Arduino Uno vs Arduino Leonardo vs Mega vs Teensy vs Sanguino, Chipkit, Maple, and if it is ever released, Arduino DUE.

--- bill

[Reply #9 on:]

And without spaces?

Please don't to that. Too much unreadable code is already posted here.

[Reply #10 on:]

Just being playful PaulS. I don't recommend putting it all "on one line" anyway.

Reply #1 is the recommended answer.

[Reply #11 on:]

If that worries you you're going to have a hard time programming

Hey, I've learned a lot. And I'm not worried about FOR. We all use it many times. Probably a bit over the top me saying "big bad for".  Reply # 1 looks good. Just thought I could conserve some ink. I'm done! Thanks all.

[Reply #12 on:]

All right already! The big bad FOR shows it head again!
Thought I could do it with these things:  (   ),    [   ],    {   }
But, guess not.
Thanks all...

If you hate "for", use "while" instead:

Code:

byte i=2; while (i<=10) pinMode(i++,OUTPUT);

[Reply #13 on:]

You can also use direct port manipulation without fors or whiles:

Code:

DDRD = DDRD | B0111111;  // pins 2-7
DDRB = DDRB | B10000000; // pin 8

[Reply #14 on:]

If you hate "for", use "while" instead:

And:

You can also use direct port manipulation without fors or whiles:

WOW ! 2 other ways. Super