LeituraLED

CIRCUITO:

CÓDIGO 1:

#define BOTAO 7
#define LED1 3
#define LED2 4
#define LED3 5
#define LED4 6
void setup() {
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(BOTAO, INPUT);
}
void loop() 
{
  if (digitalRead(BOTAO) == LOW) 
  {   digitalWrite(LED1, HIGH);
      delay(500);
      digitalWrite(LED2, HIGH);
      delay(500);
      digitalWrite(LED3, HIGH);
      delay(500);
      digitalWrite(LED4, HIGH);
      delay(500);
  }
  else 
  {   digitalWrite(LED1, LOW);
      delay(500);
      digitalWrite(LED2, LOW);
      delay(500);
      digitalWrite(LED3, LOW);
      delay(500);
      digitalWrite(LED4, LOW);
      delay(500);
  }
  
}

CÓDIGO 2:

Para 6 leds:

#define LED1 8
#define LED2 9
#define LED3 10
#define LED4 11
#define LED5 12
#define LED6 13
#define BOTAO 7

void anima(void);
void apagaleds(void);

void setup() {
 
 pinMode(LED1, OUTPUT);
 pinMode(LED2, OUTPUT);
 pinMode(LED3, OUTPUT);
 pinMode(LED4, OUTPUT);
 pinMode(LED5, OUTPUT);
 pinMode(LED6, OUTPUT);
 pinMode(BOTAO, INPUT);

}

void loop() {

 if(digitalRead(BOTAO)==LOW)
     anima();
 else
     apagaleds();

}

void anima()
{    apagaleds();
     digitalWrite(LED1, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED5, HIGH);
     delay(500);
     digitalWrite(LED1, LOW);
     digitalWrite(LED3, LOW);
     digitalWrite(LED5, LOW);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED6, HIGH);
     delay(500);
     apagaleds();
     delay(200);
     digitalWrite(LED1, HIGH);
     delay(200);
     digitalWrite(LED2, HIGH);
     delay(200);
     digitalWrite(LED3, HIGH);
     delay(200);
     digitalWrite(LED4, HIGH);
     delay(200);
     digitalWrite(LED5, HIGH);
     delay(200);
     digitalWrite(LED6, HIGH);
     delay(200);
     apagaleds();
}

void apagaleds()
{
    digitalWrite(LED1, LOW);
    digitalWrite(LED3, LOW);
    digitalWrite(LED5, LOW);
    digitalWrite(LED2, LOW);
    digitalWrite(LED4, LOW);
    digitalWrite(LED6, LOW);
}