Example 6 fading led light

[Ahmad Altonji]

// Example_6_fading_led_light_www.altonji.net
const int ledPin = 11; 
int i = 0;         

void setup( )
   { 
  pinMode(ledPin, OUTPUT); 
    } 
void loop()
{ 
    for (i = 0; i < 255; i++)
         { 
    analogWrite(ledPin, i);      
    delay(10); 
          }
    for (i = 255; i > 0; i--) 
        {
   analogWrite(ledPin, i); 
   delay(10);       
         }
}