int pwm_Master = 11;
int pwm_Center = 6;
int pwm_Wing_Left = 5;
int pwm_Wing_Right = 3;
byte fadeValue = 1;
byte valto_button = 0;
byte buttonPinUp = 12;
byte buttonStateUp = 0;
byte lastbuttonStateUp = 0;
byte buttonPinDown = 13;
byte buttonStateDown = 0;
byte lastbuttonStateDown = 0;
int Value_M = 0;
void setup() {            //ez a rutin egyszer fut le

   Serial.begin(9600);

    pinMode(buttonPinUp, INPUT); // a gombot bemenetnek inicializáljuk:
    pinMode(buttonPinDown, INPUT);
    pinMode (valto_button, INPUT);

    for (fadeValue = 255 ; fadeValue >= 1; fadeValue -= 1) {
    // sets the value (range from 0 to 255):

    analogWrite(pwm_Master, fadeValue);
    analogWrite(pwm_Center, fadeValue);
    analogWrite(pwm_Wing_Left, fadeValue);
    analogWrite(pwm_Wing_Right, fadeValue);
    // wait for 30 milliseconds to see the dimming effect
    delay(10);
  }
}

/**********************FŐ PROGRAM*****************************************/
void loop() {
    buttonStateUp = digitalRead(buttonPinUp);                                 // beolvassa a nyomogomb értékeket a megfeleő helyekről
    buttonStateDown = digitalRead(buttonPinDown);

    if (buttonStateUp != lastbuttonStateUp) {  // figyeli, hogy állapotváltozás történt-e
        ++ fadeValue;                           // if the current state the button went from off to on:
    }
     if (fadeValue == 255){
            fadeValue -1;
    }
      delay(10);                                                              // várakozás 150 ms ideig.

    if (buttonStateDown != lastbuttonStateDown) {
    // ha állapotváltozás történt  inkrementálja a változót
       -- fadeValue;
  }
      delay(10);
  valto_button = digitalRead (7);

  if (valto_button == 1)
      Value_M = analogRead (A0);
      else if  (valto_button!=1)
        Value_M = fadeValue * 4;

  int Value_C = analogRead(A1);
      if (Value_C > Value_M) {
          Value_C = Value_M;
  }
  int Value_W_L = analogRead(A2);
      if (Value_W_L > Value_M) {
          Value_W_L = Value_M;
  }
  int Value_W_R = analogRead(A3);
      if (Value_W_R > Value_M) {
          Value_W_R = Value_M;
  }
  int voltage_M = (Value_M / 4 );
  int voltage_C = (Value_C / 4);
  int voltage_W_L = (Value_W_L / 4);
  int voltage_W_R = (Value_W_R / 4);
/****************************Debug***************************************/
Serial.print("kapcsoló:");
Serial.print(valto_button);
Serial.print(" ");
Serial.print("Master:");
Serial.print(Value_M/10.23);
Serial.print(" ");
Serial.print("Center:");
Serial.print(Value_C/10.23);
Serial.print(" ");
Serial.print("oldal:");
Serial.print(Value_W_L/10.23);
Serial.print(" ");
Serial.print("oldal:");
Serial.print(Value_W_R/10.23);
Serial.print(" ");
Serial.print("gomb fel,le:");
Serial.println(fadeValue);

/*****************************KIIRATÁS************************************/

  analogWrite(pwm_Master, voltage_M);
  analogWrite(pwm_Center, voltage_C);
  analogWrite(pwm_Wing_Left, voltage_W_L);
  analogWrite(pwm_Wing_Right, voltage_W_R);
  delay(5);
}