unsigned long lastDelay = millis();
int delayIt = 300;
// Eingabe

// Auxiliar variables to store the current output state
String stateButtonsWaterMore = "off";
String stateButtonsWaterLess = "off";
String stateButtonsWaterNow = "off";
String stateButtonsIntMore = "off";
String stateButtonsIntLess = "off";
String stateButtonsResetAll = "off";

void setupButtons() {

  // Tastatur
  pinMode(tasterWaterMore, INPUT_PULLUP);
  pinMode(tasterWaterLess, INPUT_PULLUP);
  pinMode(tasterWaterNow, INPUT_PULLUP);
  pinMode(tasterIntMore, INPUT_PULLUP);
  pinMode(tasterIntLess, INPUT_PULLUP);
  pinMode(tasterReset, INPUT_PULLUP);
}



// Push Hardware-Buttons
void buttonsWaterLess() {
  // Bewässerungsdauer reduzieren
  if (millis() >= lastDelay + delayIt) {
    if (max_water - 1000 > 0) {
      max_water = max_water - 1000;
    }
    Serial.println("MaxWater -1");

    lastDelay = millis();
  }
}
void buttonsWaterMore() {
  // Bewässerungsdauer verlängern
  if (millis() >= lastDelay + delayIt) {
    max_water = max_water + 1000;
    Serial.println("MaxWater +1");

    lastDelay = millis();
  }
}
void buttonsIntLess() {
  // Bewässerungsintervall verkürzen
  if (millis() >= lastDelay + delayIt) {
    if (duration_interval - 60000 > 0) {
      duration_interval = duration_interval - 60000;
    }
    Serial.println("IntWater -60");

    lastDelay = millis();
  }
}
void buttonsIntMore() {
  // Bewässerungsintervall erhöhen
  if (millis() >= lastDelay + delayIt) {
    duration_interval = duration_interval + 60000;
    Serial.println("IntWater +60");

    lastDelay = millis();
  }
}
void buttonsWaterNow() {
  // sofort wässern
  if (millis() >= lastDelay + delayIt) {
    last_water = millis() - duration_interval;
    Serial.print("NOW -------------------  ");
    Serial.print(last_water);

    lastDelay = millis();
  }
}
void buttonsResetAll() {
  // Werte zuruecksetzen
  if (millis() >= lastDelay + delayIt) {
    max_water = std_max_water;
    duration_interval = std_duration_interval;
    last_water = millis();
    Serial.println("RESET");

    lastDelay = millis();
  }
}

void loopButtons() {

  // Push Hardware-Buttons
  if (digitalRead(tasterWaterLess) == LOW) {
    buttonsWaterLess();
  }
  if (digitalRead(tasterWaterMore) == LOW) {
    buttonsWaterMore();
  }
  if (digitalRead(tasterIntLess) == LOW) {
    buttonsIntLess();
  }
  if (digitalRead(tasterIntMore) == LOW) {
    buttonsIntMore();
  }
  if (digitalRead(tasterWaterNow) == LOW) {
    buttonsWaterNow();
  }
  if (digitalRead(tasterReset) == LOW) {
    buttonsResetAll();
  }
}