#define PIR_PIN 2
#define BUZZER_PIN 3
#define BUTTON_PIN 4
void setup() {
pinMode(PIR_PIN, INPUT);
pinMode(BUZZER_PIN, OUTPUT);
pinMode(BUTTON_PIN, INPUT_PULLUP);
}
void loop() {
// Check for motion
if (digitalRead(PIR_PIN) == HIGH) {
triggerAlarm();
delay(5000); // Wait for 5 seconds to avoid triggering the alarm multiple times
}
// Check button press
if (digitalRead(BUTTON_PIN) == LOW) {
stopAlarm();
delay(1000); // Debounce delay
}
}
void triggerAlarm() {
digitalWrite(BUZZER_PIN, HIGH);
}
void stopAlarm() {
digitalWrite(BUZZER_PIN, LOW);
}
