int pwmPin=13;
void setup()
{
pinMode(pwmPin, OUTPUT);
}
void loop()
{
for(int value =0;value<=255;value++)
{
analogWrite(pwmPin,value);
delay(30);
}
delay(50);
for(int value =0;value<=255;value++)
{
analogWrite(pwmPin,value);
delay(30);
}
}