const int BUTTON_PIN_K = 8;  
const int BUTTON_PIN_L = 7;
const int RELAY_PIN_1 = 9;
const int RELAY_PIN_2 = 10;
const int RELAY_PIN_3 = 11;
const int RELAY_PIN_4 = 12; 

int lastButtonState_K;    // the previous state of button
int currentButtonState_K; // the current state of button
int lastButtonState_L;    // the previous state of button
int currentButtonState_L; // the current state of button


void setup() {
  Serial.begin(9600);                  // initialize serial
  pinMode(BUTTON_PIN_K, INPUT_PULLUP); // set arduino pin to input pull-up mode
  pinMode(BUTTON_PIN_L, INPUT_PULLUP);
  pinMode(RELAY_PIN_1, OUTPUT);        // set arduino pin to output mode
  pinMode(RELAY_PIN_2, OUTPUT);
  pinMode(RELAY_PIN_3, OUTPUT);
  pinMode(RELAY_PIN_4, OUTPUT);  


  currentButtonState_K = digitalRead(BUTTON_PIN_K);
  currentButtonState_L = digitalRead(BUTTON_PIN_L);

  digitalWrite(RELAY_PIN_1, LOW);
  digitalWrite(RELAY_PIN_2, LOW);
  digitalWrite(RELAY_PIN_3, LOW);
  digitalWrite(RELAY_PIN_4, LOW);
  
}
  
void loop() {
  lastButtonState_k = currentButtonState_k ;     // save the last state
  currentButtonState_K = digitalRead(BUTTON_PIN_K); // read new state

  if(lastButtonState_K == HIGH && currentButtonState_K == LOW) {
    Serial.println("The button kort is pressed");
  
      digitalWrite(RELAY_PIN_4,HIGH);
      delay(500);
      digitalWrite(RELAY_PIN_4,LOW);
      digitalWrite(RELAY_PIN_2,HIGH);
      delay(120000);
      digitalWrite(RELAY_PIN_2,LOW);
      digitalWrite(RELAY_PIN_1,HIGH);
      delay(15000);
      digitalWrite(RELAY_PIN_1,LOW);

      // end of program kort
  }
  if(lastButtonState_L == HIGH && currentButtonState_L == LOW) {
    Serial.println("The button LANG is pressed");

          digitalWrite(RELAY_PIN_4,HIGH);
      delay(500);
      digitalWrite(RELAY_PIN_4,LOW);
      digitalWrite(RELAY_PIN_2,HIGH);
      delay(360000);
      digitalWrite(RELAY_PIN_2,LOW);
      digitalWrite(RELAY_PIN_1,HIGH);
      delay(15000);
      digitalWrite(RELAY_PIN_1,LOW);

      // end of program lang
  }
}