int red = 13;
int green = 12;
int blue = 11;
int buton = 10;
int sayac = 0;
void setup() {
pinMode(buton,INPUT);
pinMode(red,OUTPUT);
pinMode(green,OUTPUT);
pinMode(blue,OUTPUT);
}

void loop() {
buton = digitalRead (10);
if(buton==1)
{
sayac = sayac+1;
delay(300);
}

if(sayac==0)
{
  kirmizi();
}
if(sayac==1)
{
yesil();
}
if(sayac == 2)
{
  mavi();
}
if(sayac>=3)
sayac=0;
}
void kirmizi() {
digitalWrite(red,LOW);
  digitalWrite(blue,HIGH);
  digitalWrite(green,HIGH);
}
void yesil() {

 digitalWrite(red,HIGH);
  digitalWrite(blue,HIGH);
 digitalWrite(green,LOW);
}
void mavi() {
  digitalWrite(red,HIGH);
  digitalWrite(blue,LOW);
  digitalWrite(green,HIGH);
}