const int buttonPin = 2; 

// Variables will change:
boolean longDelayFlag;
boolean pressState;
byte clickCount;
int buttonState;           
int lastButtonState = LOW; 
unsigned long lastDebounceTime; 
unsigned long clickCountDelay;  
unsigned long clickLongDelay;

void setup() {
  Serial.begin(9600);
  pinMode(buttonPin, INPUT);
}

void loop() {
  int reading = digitalRead(buttonPin);
  }
  if (reading != lastButtonState) {
    lastDebounceTime = millis();
  }
  if ((millis() - lastDebounceTime) > 50) {
    //Serial.println("bouncing");
    clickLongDelay = lastDebounceTime;
    if (reading != buttonState) {
      //Serial.println("bouncing");
      buttonState = reading;
      if (buttonState == HIGH) {
        clickCountDelay = millis();
        clickCount++;
        Serial.println(clickCount);
      }
    }
  }
lastButtonState = reading;

if (((millis() - clickCountDelay) > 300) && clickCount == 0b00000001){
  Serial.println("MODE 1");
  clickCount = 0;
}
else if (((millis() - clickCountDelay) > 300) && clickCount == 0b00000010){
  Serial.println("MODE 2");
  clickCount = 0;
}
else if (((millis() - clickCountDelay) > 300) && clickCount == 0b00000011){
  Serial.println("MODE 3");
  clickCount = 0;
}
else if (((millis() - clickCountDelay) > 300) && clickCount > 0b00000011){
  clickCount = 0;
}
  
}