byte flag = 0;
byte flag_butt = 0;
boolean butt;
unsigned long time;

void setup() {
  pinMode(2, INPUT_PULLUP);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);

  Serial.begin(9600);


}

void loop() {
  butt = !digitalRead(2);

  if (butt == 1 && flag_butt == 0 && millis() - time > 150) {
    time = millis();
    flag_butt = 1;
    Serial.println("MODE 1");
    

  }
  if (butt == 1 && flag_butt == 1 && millis() - time > 150) {
    time = millis();
    flag_butt = 2;
    Serial.println("MODE 2");
    

  }
  if (butt == 1 && flag_butt == 2 && millis() - time > 150) {
    time = millis();
    flag_butt = 3;
    Serial.println("MODE 3");
    

  }
  if (butt == 1 && flag_butt == 3 && millis() - time > 150) {
    time = millis();
    flag_butt = 0;
    Serial.println("OFF");
    

  }
  

}