int red = 11;
int green = 10;
int blue = 9;

int btn = 13;
bool btnState = LOW;
int counter = 0;

int pot = A0;
int potValue = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);

  pinMode(btn, INPUT_PULLUP);
  pinMode(pot, INPUT);

  Serial.begin(9600);
}

void loop() {
  // Každým stalčením sa smení farba R, G, B -> R ...
  btnState = !digitalRead(btn);
  if(btnState == HIGH){
    counter++;

  if(counter  == 1){
    digitalWrite(red, HIGH);
    digitalWrite(green, LOW);
    digitalWrite(blue, LOW);
  }else if(counter  == 2){
    digitalWrite(red, LOW);
    digitalWrite(green, HIGH);
    digitalWrite(blue, LOW);   
  }else if(counter  == 3){
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
    digitalWrite(blue, HIGH);   
  }else{
    counter = 0;
  }
    delay(200);
  }
  Serial.println(counter);
}


//Analog - 0 - 1023
// PWM - 0 - 255
// Dig. - 0 - 1