#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

const int pirSensor = 2; // PIR motion sensor connected to pin 2
const int buzzer = 11;

void setup() {
  pinMode(pirSensor, INPUT);
  pinMode(buzzer, OUTPUT);
  Serial.begin(9600);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  display.display(); // Show initial display buffer contents on the screen
  delay(2000);  // Pause for 2 seconds
  display.clearDisplay(); // Clear the buffer
}

void loop() {
  int motionDetected = digitalRead(pirSensor);

  if (motionDetected == LOW) {
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(16, 15);
     display.println("ALERT! SURAJ");
     display.println("");
     display.println("");
     display.setCursor(0, 30);
    display.println("A Thief is Detected");
    display.display();
    tone(buzzer, 1000);
  } else {
    display.clearDisplay();
    display.display();
    noTone(buzzer);
  }
  
  delay(500); // Adjust delay as needed
}