int ledpin=11;
int led=7;
void setup() {
  pinMode(7, OUTPUT);
}

void loop() {
 for (int fadeValue = 0 ; fadeValue <= 255; fadeValue +=5){
  digitalWrite(ledpin, fadeValue);
  delay(40);
  digitalWrite(led, HIGH);
  delay(40);
 }

 for (int fadeValue=255; fadeValue<=0; fadeValue -=5){
  digitalWrite(ledpin, fadeValue);
  delay(40);
  digitalWrite(led, LOW);
  delay(40);
}
 }