const int led1 = 12, led2 = 14;
void setup () {
  Serial. begin (115200);
  pinMode(led1, OUTPUT);
  pinMode (led2, OUTPUT);
}





void loop () {
  for (int brightness = 0; brightness < 256; brightness++) {

    analogWrite(led1, brightness);
    delay (10);
  }

  digitalWrite(led2, HIGH);
  delay (1000);
  analogWrite(led1, 0);
  digitalWrite(led2, LOW);
  delay (500);
}