// PROGRAMA AULA 2 ARDUINO

#define B1N4 11
#define B1N3 10
#define B1N2 9
#define B1N1 8

int tempo = 2;

void setup() {
  pinMode(B1N4, OUTPUT);
  pinMode(B1N3, OUTPUT);
  pinMode(B1N2, OUTPUT);
  pinMode(B1N1, OUTPUT);
}


void loop() 
{
  digitalWrite(B1N1, HIGH);   
  delay(tempo);                       
  digitalWrite(B1N1, LOW);    
  //delay(tempo); 
  
  digitalWrite(B1N2, HIGH);   
  delay(tempo);                       
  digitalWrite(B1N2, LOW);    
  //delay(tempo);

  digitalWrite(B1N3, HIGH);   
  delay(tempo);                       
  digitalWrite(B1N3, LOW);    
  //delay(tempo);

  digitalWrite(B1N4, HIGH);   
  delay(tempo);                       
  digitalWrite(B1N4, LOW);    
  //delay(tempo);

}