#define RedLed 10



void setup() 

{
  pinMode(RedLed, OUTPUT);//Tell arduino RedLed its output

}

void loop() 
{
  for(int i=0;i<=255;i=i+10)//Initalization
  
  {

analogWrite(RedLed,i);
delay(100);

  }

  for(int i=255;i==0;i=i-10)//Initalization
  
  {

analogWrite(RedLed,i);
delay(100);

  }
delay(1000);


}