int red=9;
int green = 10;
int blue = 11;
int knopka=2;
boolean knopka1, knopka0;
int num=0;
void setup() {
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);
  pinMode(knopka, INPUT);
}
void loop() {
  knopka1 = digitalRead(knopka);
  if (knopka1 == HIGH && knopka0 == LOW) {
    num=num+1;
    delay(100);
  }
  else{
    delay(50);
  }
  knopka0 = knopka1;
  
  if(num==0){               //всё выключено
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
    digitalWrite(blue, LOW);
  }
  if(num==1){               //красный
    digitalWrite(red, HIGH);
    digitalWrite(green, LOW);
    digitalWrite(blue, LOW);
  }
  if(num==2){               //зелёный
    digitalWrite(red, LOW);
    digitalWrite(green, HIGH);
    digitalWrite(blue, LOW);
  }
  if(num==3){               //синий
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
    digitalWrite(blue, HIGH);
  }
  if(num==4){
    digitalWrite(red, HIGH);
    digitalWrite(green, LOW);
    digitalWrite(blue, HIGH);
  }
  if(num==5){
    digitalWrite(red, HIGH);
    digitalWrite(green, HIGH);
    digitalWrite(blue, LOW);
  }
  if(num==6){
    digitalWrite(red, LOW);
    digitalWrite(green, HIGH);
    digitalWrite(blue, HIGH);
  }
  if(num==7){
    num=0;

  }
  
}