How to send a number as a number or How to rule an LED

[Nonsanity]

As long as you have DoLed( int ) and DoBeep( int ) functions, that looks
right to me now. It should be clear how to modify that to your needs, and if
not, feel free to contact me off-list and I'll give you a hand. :)

 ~ Chris Innanen
 ~ Nonsanity


On Fri, Feb 4, 2011 at 12:38 PM, Thomas McGrath III <mcgrath3 at mac.com>wrote:

> Is this right?
>
> char cmd[255];
> int param = 0;
> char buf[255];
> int bufloc = 0;
> while ( true )
> {
>   buf[ bufloc ] = Serial.Read();
>   if ( buf[ bufloc ] == 13 ) // CR EOL
>   {
>      sscanf( buf, "%s %i", cmd, &param );
>       if ( !strcmp( cmd, "LED" ) ) // if cmd == "LED"
>           DoLed( param );
>       else if ( !strcmp( cmd, "BEEP" ) ) // if cmd == "BEEP"
>           DoBeep( param );
>
>       memset( buf, 0, sizeof( buf ) ); // clear the buffer
>       bufloc = 0; // start at the beginning again
>   }
>    else
>   {
>       ++bufloc; // next read will go in the next buf char
>       if ( bufloc > 255 )
>       {
>           // ERROR - buffer overflow - line too long - missing CR? (print
> something...)
>           memset( buf, 0, sizeof( buf ) );
>           bufloc = 0;
>       }
>   }
>
>
>
> -- Tom McGrath III
> http://lazyriver.on-rev.com
> 3mcgrath at comcast.net
>
> On Feb 4, 2011, at 12:35 PM, Thomas McGrath III wrote:
>
> > Well, Thank you very much the numtochar worked perfectly. SInce most of
> these are either two or three numbers being sent for motor/stepper and LED
> and will not be more than 255 I will stick with the numtochar() for this. I
> will still try to come up with a parser for the Arduino for passing commands
> and arguments but a tleast for now I am Beating that LED into submission and
> am very happy about it.
> >
> >
> >
> > -- Tom McGrath III
> > http://lazyriver.on-rev.com
> > 3mcgrath at comcast.net
> >
> > On Feb 4, 2011, at 12:23 PM, form wrote:
> >
> >> On Fri, Feb 4, 2011 at 12:18 PM, form <form at nonsanity.com> wrote:
> >>
> >>>
> >>>   else
> >>>       ++bufloc; // next read will go in the next buf char
> >>
> >>
> >> For safety's sake...
> >>
> >>   else
> >>   {
> >>       ++bufloc; // next read will go in the next buf char
> >>       if ( bufloc > 255 )
> >>       {
> >>           // ERROR - buffer overflow - line too long - missing CR?
> (print
> >> something...)
> >>           memset( buf, 0, sizeof( buf ) );
> >>           bufloc = 0;
> >>       }
> >>   }
> >>
> >> Looking at that code and knowing that error would crash it... I couldn't
> >> stand it anymore. :)
> >>
> >> ~ Chris Innanen
> >> ~ Nonsanity
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