//Objectif: analogWrite()

int led=3;

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  Serial.begin(9600);
}
void toggle(int led){
  digitalWrite(led, !digitalRead(led));
}
void fadeIn(int led){
  for(int j=0;j<256;j++){
    analogWrite(led,j);
    delay(2);
  }
}
void fadeOut(int led){
  for(int j=256;j>0;j--){
    analogWrite(led,j);
    delay(2);
  }
}
void loop() {
  // put your main code here, to run repeatedly:
  analogWrite(led,0);
  delay(500);
  analogWrite(led,10);
  delay(500);
  analogWrite(led,255);
  delay(500);
}