#include <Stepper.h>

// Define number of steps per revolution for 28BYJ-48
const int stepsPerRevolution = 2048;

// Initialize stepper on pins 4, 5, 6, 7
Stepper sprinklerMotor(stepsPerRevolution, 4, 5, 6, 7);

const int sensorPin = 2;     // PIR sensor pin
const int buzzerPin = 3;     // Buzzer pin

void setup() {
  pinMode(sensorPin, INPUT);
  pinMode(buzzerPin, OUTPUT);
  sprinklerMotor.setSpeed(10); // Set motor speed (RPM)
  Serial.begin(9600);
}

void loop() {
  int sensorValue = digitalRead(sensorPin);
  Serial.println(sensorValue);

  if (sensorValue == HIGH) {
    digitalWrite(buzzerPin, HIGH);
    delay(1000); // Delay before activating sprinkler

    // Rotate the stepper motor one full revolution
    sprinklerMotor.step(stepsPerRevolution); // You can change to half/quarter if needed
  } else {
    digitalWrite(buzzerPin, LOW);
    // No motor action when no fire (optional: reverse motor if needed)
  }

  delay(100); // Short delay for stability
}