Arduino

int ledPin = 3;
int outPin = 2;
void setup()
{
 pinMode(ledPin, OUTPUT);
 pinMode(outPin, OUTPUT);
}


void loop(){
 // 3 dits 
 for (int x=0; x<3; x++) {
      digitalWrite(ledPin, HIGH);
      digitalWrite(outPin, HIGH); 
      delay(150);  
      digitalWrite(ledPin, LOW);
      digitalWrite(outPin, LOW);
      delay(150); 
 }


delay(300); 
 
 for (int x=0; x<3; x++) {
      digitalWrite(ledPin, HIGH); 
      delay(450);  
      digitalWrite(ledPin, LOW); 
      delay(150); 
 }


delay(300);


// 3 dits 
 for (int x=0; x<3; x++) {
      digitalWrite(ledPin, HIGH); 
      delay(150);  
      digitalWrite(ledPin, LOW); 
      delay(150); 
 }


delay(1050);
}

Arduino 2

int inPin = 12;  
int ledPin = 9; 
int val = 0;    

void setup() {
  pinMode(ledPin, OUTPUT); 
  pinMode(inPin, INPUT); 
  Serial.begin(9600);
  
}

void loop() {
  Serial.println(" ");
  val = digitalRead(inPin);   
  digitalWrite(ledPin, val);
  Serial.println(val);
}