void setup() {
  int value1;
#define led 12
#define bjt 9
#define buzzer 7

Serial.begin(9600);
    pinMode(bjt, OUTPUT);
    pinMode(led,OUTPUT);
    pinMode(buzzer, OUTPUT);
    digitalWrite(bjt, HIGH);
    digitalWrite(led, LOW);

}

void loop() {
  
  erial.println("Reading");
  while(Serial.available()==0);
  value1 = Serial.read();
  Serial.println(value1);
  if (value1==1)
  {
    Serial.println("Unlocking");
    digitalWrite(bjt, LOW);
    digitalWrite(buzzer, HIGH);
    digitalWrite(led, HIGH);
    delay(1000);       
    digitalWrite(buzzer, LOW);
    delay(6000);
    digitalWrite(bjt, HIGH);
    digitalWrite(led, LOW);
  }
  if (value1==0)
  {
      digitalWrite(bjt, HIGH);
      digitalWrite(buzzer, HIGH);
      Serial.println("Locking");
      delay(1000);
      digitalWrite(buzzer, LOW);
      delay(1000);
      digitalWrite(buzzer, HIGH);
      delay(1000);
      digitalWrite(buzzer, LOW);
      delay(1000);
      digitalWrite(buzzer, HIGH);
      delay(1000);
      digitalWrite(buzzer, LOW);
  }
  // put your main code here, to run repeatedly:

}