//CODIGO
const int led_rojo = 5;
const int led_azul = 3;
const int led_amarillo = 6;
const int pausa = 100;
int brillo = 0;
 
void setup() {
  //Serial.begin(9600);
 
 
}
 
void loop() {
 
for (int brillo = 0; brillo < 255; brillo++) {
  analogWrite(led_rojo,brillo);
  delay(10);
}
 
for (int brillo = 255; brillo > 0; brillo--) {
  analogWrite(led_rojo,brillo);
  delay(10);
}
 
 
}