Скачать или смотреть Theft Alert System-Arduino Uno

const int pirPin = 2; // Pin connected to the PIR sensor's OUT pin
const int buzzerPin = 13; // Pin connected to the buzzer's I/O or SIG pin

void setup() {
// Initialize the PIR sensor pin as an input
pinMode(pirPin, INPUT);

// Initialize the buzzer pin as an output
pinMode(buzzerPin, OUTPUT);

// Start serial communication for debugging purposes
Serial.begin(9600);
Serial.println("Theft Alert System is Armed and Ready.");
}

void loop() {
// Read the state of the PIR sensor
int pirState = digitalRead(pirPin);

// Check if motion is detected
if (pirState == HIGH) {
// If motion is detected, turn the buzzer ON and print a message
digitalWrite(buzzerPin, HIGH);
Serial.println("ALERT: Motion Detected! Alarm ON!");
delay(1000); // Buzzer stays on for 1 second
} else {
// If no motion, ensure the buzzer is OFF and print a message
digitalWrite(buzzerPin, LOW);
Serial.println("Status: No Motion Detected. Alarm OFF.");
delay(500); // Check for motion every 0.5 seconds
}
}