#define LED_PIN 14
#define SENSOR_PIN 12
bool PIR_value, prev_PIR_value;

void setup() {
  Serial.begin(115200);

  pinMode(LED_PIN, OUTPUT);
  pinMode(SENSOR_PIN, INPUT);
}

void loop() {
  prev_PIR_value = PIR_value;
  PIR_value = digitalRead(SENSOR_PIN);

  if(PIR_value == HIGH) {
    printf("Motion detected\n");
    if(PIR_value > prev_PIR_value) {
      digitalWrite(LED_PIN, HIGH); // Turning on the led
      delay(5500);
    }
  }
  else if(PIR_value == LOW) {
    if(PIR_value < prev_PIR_value) {
      digitalWrite(LED_PIN, LOW); // Turning off the led
    }
  }
}