#include <TimerOne.h>

#define BUTTON 2
#define RESET_BUTTON 3 // Neuer Pin für den Reset-Button
#define LED1 8
#define LED2 9
#define LED3 10
#define LED4 11

volatile bool updateLEDs = false;
int ButtonCounter = 0;

void setup() {
  Serial.begin(9600);
  pinMode(BUTTON, INPUT_PULLUP);
  pinMode(RESET_BUTTON, INPUT_PULLUP); // Initialisiere den Reset-Button
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);

  Timer1.initialize(20000);
  Timer1.attachInterrupt(timerISR);
  attachInterrupt(digitalPinToInterrupt(BUTTON), buttonISR, RISING);
  attachInterrupt(digitalPinToInterrupt(RESET_BUTTON), resetISR, FALLING); // Interrupt für Reset-Button
}

void buttonISR() {
  Timer1.start();
}

void resetISR() {
  ButtonCounter = 0; // Setze den Zähler zurück
  updateLEDs = true; // Aktualisiere die LED-Anzeige
}

void loop() {
  if(updateLEDs){
    updateLEDs = false;
    updateBinaryDisplay(ButtonCounter);
  }
}

void updateBinaryDisplay(int Count){
  digitalWrite(LED1, Count & 0x01);
  digitalWrite(LED2, Count & 0x02);
  digitalWrite(LED3, Count & 0x04);
  digitalWrite(LED4, Count & 0x08);
}

void timerISR(){
  Timer1.stop();
  if(digitalRead(BUTTON) == LOW){
    ButtonCounter = (ButtonCounter + 1) % 16;
    updateLEDs = true;
    Serial.println(ButtonCounter, BIN);
  }
}