define output as int variable

Projects Programming
5

In your second sketch you are setting pin 0 to OUTPUT then switching pin 13 which is an INPUT.
Try:

int _ABVAR_1_pin13 = 13;

void setup()
{
  pinMode( _ABVAR_1_pin13 , OUTPUT);
}

void loop()
{
   while (1)
  {
    digitalWrite(_ABVAR_1_pin13 , HIGH);
    delay( 1000 );
    digitalWrite(_ABVAR_1_pin13 , LOW);
    delay( 1000 );
  }

}

Would look better as:

int _ABVAR_1_pin = 13;

void setup()
{
    pinMode( _ABVAR_1_pin,OUTPUT);
}

void loop()
{
   while (1)
  {
    digitalWrite(_ABVAR_1_pin, HIGH);
    delay( 1000 );
    digitalWrite(_ABVAR_1_pin , LOW);
    delay( 1000 );
  }

}